As of October 2015, ICD-9 codes are no longer used for medical coding. Instead, use the following three equivalent ICD-10-CM codes, which are an approximate match to ICD-9 code 996.81:
Billable codes are sufficient justification for admission to an acute care hospital when used a principal diagnosis.
996.81 is a legacy non-billable code used to specify a medical diagnosis of complications of transplanted kidney. This code was replaced on September 30, 2015 by its ICD-10 equivalent.
References found for the code 996.81 in the Index of Diseases and Injuries:
A kidney transplant is an operation that places a healthy kidney in your body. The transplanted kidney takes over the work of the two kidneys that failed, so you no longer need dialysis.
General Equivalence Map Definitions The ICD-9 and ICD-10 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.