ICD-10-CM 2027
ICD-10 code for nephrectomy status
From the official ICD-10-CM alphabetic index entry “Status (post) › nephrectomy (unilateral) (bilateral)”. Page updated September 29, 2026.
About coding nephrectomy status
The ICD-10-CM code for nephrectomy status is Z90.5 (Acquired absence of kidney).
Within Z90 (acquired absence of organs, not elsewhere classified), Z90.5 is specifically for acquired absence of kidney. Related codes cover part of head and neck (Z90.0), breast and nipple (Z90.1), lung [part of] (Z90.2), stomach [part of] (Z90.3), other specified parts of digestive tract (Z90.4), other parts of urinary tract (Z90.6), genital organ(s) (Z90.7) and other organs (Z90.8).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 951 (Other Factors Influencing Health Status, relative weight 0.5577), in MDC 23 (Factors Influencing Health Status and Other Contacts with Health Services), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about nephrectomy status ICD-10 codes
What is the ICD-10 code for nephrectomy status?
- Z90.5 — Acquired absence of kidney.
Is Z90.5 billable?
- Yes. Z90.5 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can Z90.5 be used as a principal diagnosis?
- No. It is not acceptable as the principal diagnosis for an inpatient stay; it may be reported as a secondary diagnosis.
Is Z90.5 a CC or MCC?
- No. Z90.5 is neither a CC nor an MCC under MS-DRG v44.0.