Z94. Z52. 6 Bone transplant status. Chronic renal failure after liver transplantation (LT) is significantly more frequent than after lung or heart transplantation and it results in an increased short and long-term mortality. J Am Soc Nephrol 1999; 10 :146–153. T86. The return to dialysis after allograft failure is associated with increased morbidity and mortality. Methods: We developed an algorithm to detect AMR using. 1, 2 Prompt diagnosis and remedial treatment are vital to prevent graft loss. Delayed graft function (DGF) is closely associated with the use of marginal donated kidneys due to deficits during transplantation and in recipients. 4 may differ. et al. Rejection is a normal reaction of the body to a foreign object. ICD-10 codes covered if selection criteria are met (not all-inclusive): I21. 12 may differ. A right inguinal hernia with ureteral incarceration was observed. The glomerular filtration rate (GFR) and levels of proteinuria are shown as measured after transplantation of the allograft in the first recipient, Patient 1 (beginning on day 0), and after. 0001) ; pre. FSGS recurred in 57 patients (32%; 95% confidence interval [95% CI], 25% to 39%) and 39% of them lost their graft over a median of 5 (interquartile range, 3. Chronic kidney disease (CKD) is increasing in most countries and kidney transplantation is the best option for those patients requiring renal replacement therapy. Donor-specific antibodies have become an established biomarker predicting antibody-mediated rejection. code to identify other transplant complications, such as:; graft-versus-host disease (D89. BK virus is a human polyomavirus of high prevalence and low morbidity with an estimated prevalence in adults of 80– 90% ( 120 ). A more recent analysis from a USRDS cohort of 17 584 recipients of a second kidney transplantation, of which 20% of recipients received a pre-emptive retransplantation, showed that pre-emptive recipients had less acute rejection (12% versus 16%; P < 0. Z94. Summary Background Data. 0 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. 3 BKV is a urotheliotropic. ICD-10-CM Diagnosis Code T86. This variant was next tested under the. Graft survival of the transplanted kidney is documented in detail for the first years after transplantation in many publications. 10 - T86. Z94. 19 may differ. Chronic allograft nephropathy (CAN) is defined as renal allograft dysfunction that occurs at least 3 months after transplantation and independent of acute rejection, drug toxicity, or other disease. FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. 1 code for kidney transplant rejection or failure specified as either T86. Renal impairment may occur. 4 Among the 458 patients studied, with 315 in the native kidney arm and 143 in the transplant kidney arm, the complication rate was 28. Hence, the coder would assign 996. This is the American ICD-10-CM version of T86. 4 percent of. Further, severity of AKI proportionately increases the risk of graft failure which was evidenced in our study with four recipients out of 64 in stage 1, 8 out of 38 recipients in stage 2 and all the 10 recipients of stage 3 of AKIN criteria progressed to CKD which was comparable to the study of Nakamura et al. Physicians may document in the medical record that a kidney transplant. Additionally, it offers a summary of related problems, primarily alloantibody sensitization in the event of nephrectomy and immunosuppression weaning. ABSTRACT. Abstract. 4%), graft loss (3. Risk factors for chronic rejection in renal allograft recipients. INTRODUCTION Graft Loss and Mortality. CNI toxicity is seen most frequently in kidney transplant recipients, but it has been reported in other. 10/01/2022 R8 Article revised and published on 10/20/2022 effective for dates of service on and after 10/01/2022 to reflect the Annual ICD-10-CM Code Updates. Due to transplantation of foreign donor kidney allograft into recipient Clinical features. Of these 7 were declared PNF: 1 recipient received a standard KDPI kidney and had acute rejection and pyelonephritis; 1 recipient received an AKI and high KDPI kidney; 2 recipients had chronic hypotension due to cardiac causes; 1 recipient had hypotension due to cirrhosis; 2 recipients had graft loss likely related to advanced. 0 to 19. The targets of injury include the kidney tubular epithelium, the endothelium, and the glomerulus. Kidney transplant failure. 19 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Delayed graft function (DGF), most commonly defined as the need for at least 1 dialysis treatment. The following code (s) above T86. 5 Skin transplant status. 100 for kidney transplant rejection or as T86. Stuart J. This topic will review the epidemiology, microbiology, pathogenesis, clinical manifestations, screening, diagnosis, and management of BKPyV infection in kidney. Thrombotic microangiopathy is a rare but serious complication that affects kidney transplant recipients. History of kidney transplant; History of renal transplant. Kidney Transplantations From HBsAg-Positive Donors. This video walks you through how to assign an ICD-10-PCS code for a kidney transplantation using a complete operative report. In the early period, drug induced acute interstitial nephritis can also be a reason for AKI in kidney allograft recipients. urinary cell TIM-3 mRNA levels distinguished the 28 renal allograft recipients with delayed graft function (DGF) and biopsy diagnosis of acute rejection and acute tubular necrosis (ATN) from the 22 the recipients with DGF and biopsy diagnosis of ATN with a sensitivity of 100% and. 12 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. 0: Kidney transplant status [not covered for prediction of graft outcomes in kidney transplantation] Urinary. Significant contributions to the clinical outcome of hypertensive KTR are age, BMI, time after the surgery, gender, presence of chronic. Hence, the coder would assign 996. Showing 1-25: ICD-10-CM Diagnosis Code Z94. Introduction. Poorly controlled hypertension is common among renal transplant recipients and associated with graft failure and high mortality . 1 years) undergoing renal transplantation at the University Hospital 12 de Octubre (Madrid, Spain) from January. 7A61A00 Read ligation of arteriovenous dialysis graft 7B00. For patient death, patients were followed up until death or. 2007). ICD-10: T86. Free Full Text; Web of Science; Medline; Google. Thrombosis may arise as a complication of angiography, angioplasty or stent placement. Acute and Chronic Allograft Dysfunction in Kidney Transplant Recipients Med Clin North Am. The calcineurin inhibitor (CNI) tacrolimus (TAC), a macrolide lactone isolated from Streptomyces tsukubaensis, is the cornerstone of most immunosuppressive regimens in solid organ transplantation. 4 for Complications of liver transplant is a medical classification as listed by WHO under the range - Injury, poisoning and certain other consequences of external causes . However, its impact on mortality and graft survival is still ambiguous. We included first time, kidney transplant recipients aged ≥ 18 years who were transplanted between July 1, 2008, to May 31, 2019. The investigators found that the Immuknow assay yielded paradoxically high ATP values during the first 3 months post-transplantation, despite very low CD4. 2 - other international versions of ICD-10 T86. Complications of surgical and medical care, not elsewhere classified. 5%) of donors met Public Health Service (PHS) increased risk criteria. 00 Read h/o: renal dialysis 14V2. We aimed to identify the prevalence and. It is important to recognize that some renal transplant recipients with UTI may primarily present with fever, malaise, leukocytosis, or a non-specific sepsis syndrome without symptoms localized to the urinary tract. Get crucial instructions for accurate ICD-10-CM Z94 coding with all applicable Excludes 1 and Excludes 2 notes from the section level conveniently shown with each code. Chronic allograft injury includes both immune-mediated and nonimmune-mediated injuries, which may involve the organ donor, the recipient, or both. ICD-10-CM Codes. Z94. The median age was 57 (interquartile range [IQR] 47-67), 60% were male, 40% Caucasian, and 30% Black/African American. During a 50340 procedure, the patient, which is the kidney recipient, is placed in the supine position. Background Following kidney transplantation, BK virus associated nephropathy (BKVN) occurs in 1 to 10% of kidney transplant recipients (KTR) and represents a major cause of graft loss. The purpose of this review is to summarize recent literature describing delayed graft function in hopes of better. This is due either. Of the 101 kidney biopsies, 65 (64%) had a positive urinalysis at the time of biopsy and were included in the UA+ group and 36 (35. The causes of allograft dysfunction depend on the time period after transplantation, allowing a rational diagnostic and therapeutic approach. Kidney allograft failure is one of the most common causes of end-stage kidney disease (ESKD), accounting for 25 to 30 percent of patients awaiting kidney transplantation. However, there is no consensus on the optimal treatment strategies. "Other complication of kidney transplant. The prevalence of post-transplant hypertension among recipients of a renal allograft from a normotensive donor range from 8 to 17. T86. 61, I71. The cumulative incidence of chronic renal failure (e GFR < 30 ml/min/1. They identified plasma dd-cfDNA levels in clinically stable lung allograft recipients more than 2-year post-transplant. Introduction. 1. Renal allograft recipients have a 13-fold. All rights reserved. Acute rejection and allograft loss occurred within 12 d of initiation. 89 became effective on October 1, 2023. Includes: organ or tissue replaced by heterogenous or homogenous transplant. Current pillars of transplant monitoring are serum creatinine, proteinuria, and drug blood levels,. Kidney transplant failure Billable Code. 0 - other international versions of ICD-10 Z94. PTA is associated with increased graft loss and in most studies with increased mortality. 4 Kidney donorcadaveric kidney graft [6–8]. Chronic kidney disease (CKD) is increasing in most countries and kidney transplantation is the best option for those patients requiring renal replacement therapy. Z94. 1964267. In larger registry studies, OPTN and USRDS data showed that for some early outcomes, such as delayed graft function, kidney pairs are likely to show concordant outcomes, with the second kidney having between 1. 4 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Avoid lifting objects weighing more than 10 pounds or exercising other than walking until the wound has healed (usually about six weeks after surgery). During a 50340 procedure, the patient, which is the kidney recipient, is placed in the supine position. Z94. Arteriovenous fistulas occur in up to 10%–16% of renal allograft biopsies (19, 20) and may only be detected with CCDS. Characteristics of Recipients by Deceased Kidney Donor COVID-19 Status, OPTN 2020-2023. BK virus (BKV) was originally detected in the urine of a renal allograft recipient in whom ureteric stenosis developed and was named based on the initials of the patient (B. We aim at identifying factors associated with biopsy proven BKVN among KTR. 2 became effective on October 1, 2023. Peraldi MN, Mongiat-Artus P, Janin A. 9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Urinary tract infection (UTI) is the most. Backbench reconstruction of cadaver or living donor renal allograft prior to transplantation; ureteral anastomosis, each. , who found that Transplant recipients who were positively tested for DSA using a complement-dependent cytotoxicity crossmatch assay had a higher risk of transplant. In this article, we will present an overview of the common transplant-specific AKI etiologies that include increased susceptibility to hemodynamic-mediated AKI, acute rejection, medication-induced AKI. Polyomavirus-associated nephropathy (PVAN) is an important cause of graft dysfunction and graft loss []. The causes of ESRD for renal transplantation were summarized in Table 1. 4 became effective on October 1, 2023. 13. 50360 Renal allotransplantation, implantation of graft; without recipient nephrectomy 50365 Renal allotransplantation, implantation of graft; with recipient nephrectomy. 41: Liver transplant rejection: Z76. 5 Thus, it is not surprising that AMR was the most common cause of allograft failure in a cohort of renal transplant recipients with indication biopsies before graft failure. language English. Conclusions: A single ICD-10 code for kidney transplant rejection (T86. N Engl J Med 2005;353: 2342-2351. Summary Background Data. D,Use being made of the external iliac vein of the cadaveric donor. 2 percent, respectively, for kidney allografts and. PloS One 10 , e0138944. A kidney transplant is a surgery to place a healthy kidney from a living or deceased donor into a person whose kidneys no longer function properly. 8–14% of transplanted patients and negatively affects graft and patient survival. 2020. 1%, 92. 3%, respectively. Rates of Death and Graft Loss after Kidney Transplantation in the United States, 1996–2018, According to Years after Transplantation. 6%, respectively . The histopathology is also not specific, but transplant glomerulopathy. Backbench reconstruction of cadaver or living donor renal allograft prior to transplantation; ureteral anastomosis, each. Epidemiologic studies have shown that up to 90% of some human populations become exposed to BK virus by adulthood. The 2024 edition of ICD-10-CM Z94. © 2023 EBSCO Industries, Inc. Z codes represent reasons for encounters. [1] It typically occurs within the first month following transplantation, and more than 90% of cases occur within the first year. In the immediate postoperative period, duplex US is the modality of choice for evaluating the renal allograft. The actuarial kidney graft survival for patients with BKVN has improved in the past decade. Showing 1-25: ICD-10-CM Diagnosis Code Z94. 62. Z94. New onset diabetes mellitus after transplantation has been reported to occur in 4% to 25% of renal transplant recipients, 2. Objective To describe the long-term hemodialysis arteriovenous fistula (AVF) patency, incidence of AVF use, incidence and nature of AVF complications and surgery in patients after kidney transplantation. bpg. Introduction. 11 [convert to ICD-9-CM] Kidney transplant rejection. Baseline Characteristics. A large proportion (63–100%) of E. 0 [convert to ICD-9-CM] Kidney transplant status. Under Article Text revised the title of the table to read, “Solid Organ Allograft Rejection Tests that meet coverage criteria of policy L38568” and revised the table to add the last row. Background Post-transplant diabetes mellitus (PTDM) occurs in 10–30% of kidney transplant recipients. Introduction. Time of presentation of common viral illnesses post-transplant. 11; given that there is not a corresponding ICD-9 code with an equal degree of specificity, we only examined graft rejection among those who had their kidney. 7% of recipients at 1 year post-transplant and in 89. 9. Apart from traditional risk factors for thrombosis, emerging SARS-CoV-2 predisposes patients to thrombotic diseases both in arterial and venous vasculatures. 81 and 584. transplant patient in the context of both donor and recipient risk factors. The investigators assessed the significance of immune cell function in 76 renal allograft recipients after anti-thymocyte globulin induction and initiation of maintenance immunosuppression. The 2024 edition of ICD-10-CM T86. rat renal allograft recipient SUCCESSFUL transplantation of renal allografts without compromising the immune system of the recipient is a goal of clinical transplantation. The level of function of a transplanted kidney in the immediate postoperative period is correlated with long-term graft and patient survival [1–4]. Automated technology has the potential to revolutionize many aspects of kidney transplantation, such as precision diagnosis of allograft dysfunction, and multidisciplinary research is a promising. Similarly, 10-year graft survival was better in the RAAS blockade group when compared with the non-RAAS blockage group (59% vs 41%, p = 0. Among 11,742 kidney transplant recipients screened for FSGS, 176 had a diagnosis of idiopathic FSGS and were included. The 1-, 3-, and 5-yr actuarial kidney graft survival for patients with BKVN at our center (n = 58) was 94. ICD-10-CM Diagnosis Code R19. It accounts for 1–5% cases of post-transplant hypertension . We aimed to. Persons with potential health hazards related to family and personal history and certain conditions influencing health status. 1%, 92. This is the American ICD-10-CM version of T86. Ureteral obstruction occurs in 2–10% of renal transplant patients post-operatively, usually presenting within the first few weeks, or the first year. BKV-mediated allograft dysfunction has been retrospectively identified in 1 to 5 percent of renal-transplant recipients, but the incidence of BKV nephropathy, risk factors for it, and appropriate. ICD-10-CM Codes. Patients often present with fever, splenomegaly anemia,. This is more intensive with current tr. Importantly, long-term patient outcomes and graft survival after kidney. ItThe study cohort comprised 1258 kidney transplant recipients with a median follow-up time of 1405 days (3. A homozygous variant at the chromosome 2q12. INTRODUCTION. 23 may differ. [ 2, 3] However, these conditions were not observed in our patient. The age range varied between 16 and 80 years (Table 1). This section shows you chapter-specific coding guidelines to increase your understanding and correct usage of the target ICD-10-CM Volume 1 code. 11 Read h/o: kidney dialysis. 1–3 However, the current understanding of treatment outcomes for cancer patients who are also transplant recipients is incomplete due to exclusion of these patients from most clinical trials. Early PTA is usually defined as anemia which develops up to 6 months after transplantation, and late PTA is defined as anemia which develops after 6 months. Although the incidence of HBV infection has declined among dialysis patients, the prevalence is still high in endemic areas. Injury, poisoning and certain other consequences of external causes. 0, B25. As a response to injury, there are the expected tissue remodeling and repair processes. The majority of PVAN after. 01, 95% CI 0. Use 50340 for Recipient Nephrectomy. 14S2. 50547 Z94. 9% and 86. A kidney transplant involves the surgical removal of a kidney from a deceased or living donor and implantation into a recipient. et al. Advances in surgical techniques, immunosuppression regimens, surveillance imaging, and histopathologic diagnosis of rejection have allowed prolonged graft survival times. T86. Abstract. Transplanted organ and tissue status, unspecified. The 2024 edition of ICD-10-CM Z52. 1%, 92. 3 CSL Behring, King of Prussia, PA, USA. The immune system makes antibodies to try to kill the new organ, not realizing that the transplanted kidney is beneficial. After the first. One- and three-year graft survival showed only a. 89 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. In patients with end-stage kidney disease, kidney transplantation can improve their health and quality-adjusted life years (). 2016 May;100(3):487-503. 8 Other transplanted organ and tissue status. This is the American ICD-10-CM version of Z94. N Engl J Med 2000;342: 1309-1315. 23 became effective on October 1, 2023. encounter for removal of transplanted. 2); post-transplant lymphoproliferative disorders (PTLD) (D47. The total number of living kidney transplant recipients with a functioning graft is projected to surpass 250,000 in the next few years. We retrospectively analysed all patients who received a kidney transplant and received follow up care in our centre between 2009–2019. Persons with potential health hazards related to family and personal history and certain conditions influencing health status. BK virus was first isolated in 1970 from a kidney transplant recipient with a ureteric stricture. For eligible patients with end-stage renal disease (ESRD), kidney transplantation is the preferred treatment option as it is associated with improved long-term survival, better quality of life, and lower health care costs compared with chronic dialysis. 1%, 92. ↓ See below for any exclusions, inclusions or special notations. Most RCCs in RT recipients arises from the native kidney, but rarely may arise from the allograft. Here, we review the causes of ureteral obstruction, the diagnostic process and the role of image-guided minimally. We report a case of safe and successful treatment of cutaneous squamous cell carcinoma (SCC) with pembrolizumab in a kidney allograft recipient on immunosuppressive therapy with sirolimus and prednisone. Kidney transplantation significantly increases life expectancy and life quality when compared to dialysis in end-stage renal disease patients (ESRD) [1,2,3]. It occurs in 10% to 15% of graft recipients and usually develops 8 to 24 months after engraftment. Current standards employ lab markers of renal function and biopsy results for accurate diagnosis. Urinary lithium concentration was measured using inductively coupled plasma mass spectrometry in 642 stable kidney transplant recipients (KTRs). Urinary tract infection in kidney transplant recipients. In some patients, kidney transplantation alone is not optimal treatment. Hyperacute rejection is usually caused by specific antibodies against the graft and occurs within minutes or hours after grafting. In this article, we briefly discuss. One of the most crucial factors that affect the risk of CMV infection in post-renal transplant recipients is the preoperative. A kidney transplant involves the surgical removal of a kidney from a deceased or living donor and implantation into a recipient. RCC in donor. Use type of bill (TOB) 11X. 13 may differ. PREVALENCE AND TYPES OF DYSLIPIDEMIA. The code is valid during the current fiscal year for the submission of. Twelve cases were reviewed and are summarized on Tables 1-4 1-4 . 81 became effective on October 1, 2023. It is found in the 2023 version of the ICD-10 Clinical Modification (CM) and can be used in all HIPAA-covered transactions from Oct 01, 2022 - Sep 30, 2023 . Showing 1-25: ICD-10-CM Diagnosis Code Z94. 101 for kidney transplant failure. 1 mg/dL), but his BKV still positive with BKV load in the urine and plasma were recently detected at 1. However, kidney transplant function may be unsatisfactory in some kidney transplant recipients because of acute allograft injury after transplant, episodes of rejections, or infections (). 4) and 1 procedural code for kidney procurement/excision (1PC58, 1PC89, 1PC91). DGF is defined as the need for dialysis during the first week after transplantation, and is the most frequent early posttransplant complication. UTIs may impair overall graft and patient survival. For 50323, a donor kidney is prepared for transplant from a cadaver or living donor. The following ICD-10-CM codes have been revised: Group 1: I71. 3%, respectively. Among 2500 kidney transplant recipients who received kidney allograft at the Clinical hospital center Zagreb, 22 patients had IDD. On his 7 months follow-up, he has been in good health, and the kidney graft status has been stable (recent Scr 2. Acute kidney injury (AKI) is a common complication in renal transplant recipients. Urinary tract infection (UTI) is the most common infection after kidney transplantation. 4 - other international versions of ICD-10 Z94. Chronic active antibody-mediated rejection (AMR) is a leading cause of graft failure in kidney transplant recipients [1, 2]. 78 mins (range of 52 to 111) versus 222 mins (range of 74 to 326). 19 is a billable diagnosis code used to specify a medical diagnosis of other complication of kidney transplant. 6%, while the prevalence of post-transplant hypertension among recipients of a renal allograft from a hypertensive donor range. 12) T86. Thus, Hypertension is defined if office BP is ≥ 140/90 and ambulatory BP ≥ 130/90 in normal persons under the age of 60. 81 Bone marrow transplant status. Brian J. Effective and. Graft rejection was identified by ICD-10 code T86. Methods Computerized records from Taichung Veterans General Hospital were collected to identify renal transplant biopsies performed in the past 7 years. 6-fold increase in the risk of acute renal graft rejection . Z1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Late allograft thrombosis has been defined as occurring later than 14 days postoperatively [ 15 ], but rarely renal artery thrombosis may develop a few months post-transplantation. Ureteral obstruction occurs in 2–10% of renal transplant patients post-operatively, usually presenting within the first few weeks, or the first year. Nevertheless, it should remain high on any differential diagnosis of unexplained graft dysfunction because of the potential negative effect on graft longevity. The term 'chronic allograft nephropathy' describes a clinical syndrome of proteinuria, hypertension and declining renal function, that is a major cause of late graft loss in renal transplant. 9% and 86. 195-217 Long-term similar patient and allograft survival were confirmed in a follow-up analysis of a landmark study. Search Results. Posttransplantation diabetes mellitus (PTDM) is an important metabolic complication after KT that causes graft failure and cardiovascular complications in kidney transplantation (KT) recipients. 0) Z94. Chronic allograft. 4 mg/dL, and proteinuria. 1, B25. Injury, poisoning and certain other consequences of external causes. 23 - other international versions of ICD-10 Z48. 0: Kidney transplant status [not covered for prediction of graft outcomes in kidney transplantation] Urinary neutrophil gelatinase-associated lipocalin (NGAL) and liver-type fatty acid-binding protein (L-FABP): No specific code: ICD-10 codes not covered for indications listed in. 3 Moreover, in a multicenter cohort study, antibody-mediated damage caused allograft. Z94. Since its initial conception in 1991 for renal transplants, it has undergone review every 2 years, with attendant updated publications. Data. PloS One 10 , e0138944. Transplant renal artery stenosis (TRAS) is the narrowing of the transplant renal artery, impeding blood flow to the allograft. Nine patients received cadaveric kidneys (75%, 9/12) and three of the allografts originated from living donors (25%, 3/12). 1. Purpose of review: Delayed graft function is a common early posttransplant event predictive of adverse outcomes including hospital readmission, impaired long-term graft function, and decreased graft and patient survival. The main purpose of induction therapy has been to decrease the incidence, severity, and frequency of acute rejection (AR) episodes after transplantation with the intent of prolonging the life of the allograft. 11 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. We present here the case of a renal transplant recipient who presented with a fever of unknown origin and received a. Loss of a renal allograft as a complication of biopsy is rare. , early detection of graft dysfunction, timely identification of rejection episodes, personalization of immunosuppressive therapy, and prediction of long-term graft survival. 8 years). The kidney is the most commonly transplanted solid organ. 3%, respectively. 6 %, depending on the series [2–4]. 50340. However, the use of immunosuppressive drugs that are needed to prevent graft loss is directly associated with an increased frequency of infections and cancers, which are one of the main causes of morbidity and mortality in transplanted. 00 Read transplantation of kidney. The ICD-10 code for graft failure (T86. INTRODUCTION. 9% in the native kidney arm and 19. 2 may differ. However, clinical challenges persist, i. Kidney transplant infection. In this study, ICD-8 (59010) and ICD-10 (DN109 and DN129) were used to identify hospitalisation of patients with pyelonephritis. Z52. A kidney transplant involves the surgical removal of a kidney from a deceased or living donor and implantation into a recipient. A total of 2820 transplant kidney biopsies were performed at our center between January 1, 1998, and December 31, 2019. Code First. T86. Transplant renal artery stenosis (TRAS) is the narrowing of the transplant renal artery, impeding blood flow to the allograft.