N99.0 — Postprocedural (acute) (chronic) kidney failure
N99.0 is a billable, specific ICD-10-CM code for postprocedural (acute) (chronic) kidney failure. It is valid for submission on a claim.
Use additional code
Add a secondary code to capture the detail described below.
- code to type of kidney disease
Risk adjustment
N99.0 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
N99.0 is named in 1 Medicare coverage policy — 1 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A56421Billing and Coding: CT of the Abdomen and Pelvis
How N99.0 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to N99.0.
- Anuria›postprocedural
- Oliguria›postprocedural
- Block, blocked›kidney›postcystoscopic or postprocedural
- Failure, failed›renal›postprocedural
- Necrosis, necrotic›tubular›postprocedural
- Nephrosis, nephrotic›tubular›postprocedural
- Complication›genitourinary›postprocedural›renal failure
Related codes at this level
Codes that share N99. If N99.0 is not quite right, the correct code is usually one of these.
- N99.1Postprocedural urethral stricture
- N99.2Postprocedural adhesions of vagina
- N99.3Prolapse of vaginal vault after hysterectomy
- N99.4Postprocedural pelvic peritoneal adhesions
- N99.5Complications of stoma of urinary tract
- N99.6Intraoperative hemorrhage and hematoma of a genitourinary system organ or structure complicating a procedure
- N99.7Accidental puncture and laceration of a genitourinary system organ or structure during a procedure
- N99.8Other intraoperative and postprocedural complications and disorders of genitourinary system
Questions about N99.0
- Is N99.0 a billable ICD-10-CM code?
- Yes. N99.0 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does N99.0 sit in the tabular list?
- Diseases of the genitourinary system (N00-N99), in the block Intraoperative and postprocedural complications and disorders of genitourinary system, not elsewhere classified (N99).