ICD-10-CM 2027
ICD-10 code for anuria
From the official ICD-10-CM alphabetic index entry “Anuria”. Page updated September 29, 2026.
About coding anuria
The ICD-10-CM code for anuria is R34 (Anuria and oliguria). The official index lists 7 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on R34.
Don't report R34 together with the conditions in its Excludes1 note: anuria and oliguria complicating abortion or ectopic or molar pregnancy (O00-O07, O08.4), anuria and oliguria complicating pregnancy (O26.83-) and anuria and oliguria complicating the puerperium (O90.49).
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 673 (Other Kidney and Urinary Tract Procedures with MCC, relative weight 4.2525), DRG 674 (Other Kidney and Urinary Tract Procedures with CC, relative weight 2.2504), DRG 675 (Other Kidney and Urinary Tract Procedures without CC/MCC, relative weight 1.5887), DRG 682 (Renal Failure with MCC, relative weight 1.4656), DRG 683 (Renal Failure with CC, relative weight 0.8647) and DRG 684 (Renal Failure without CC/MCC, relative weight 0.6003), in MDC 11 (Diseases and Disorders of the Kidney and Urinary Tract), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific anuria codes (official index)
- calculous (impacted) (recurrent) N20.9 — Urinary calculus, unspecified
- following
- abortion
- ectopic or molar pregnancy O08.4 — Renal failure following ectopic and molar pregnancy
- newborn P96.0 — Congenital renal failure
- postprocedural N99.0 — Postprocedural (acute) (chronic) kidney failure
- postrenal N13.8 — Other obstructive and reflux uropathy
- puerperal O90.49 — Other postpartum acute kidney failure
- traumatic (following crushing) T79.5 — Traumatic anuria
Don't confuse with (Excludes1 for R34)
Common questions about anuria ICD-10 codes
What is the ICD-10 code for anuria?
- R34 — Anuria and oliguria. More specific codes apply when the documentation supports them: N20.9, O08.4, P96.0, N99.0 and others below.
What is the ICD-10 code for calculous anuria?
- N20.9 — Urinary calculus, unspecified.
What is the ICD-10 code for newborn anuria?
- P96.0 — Congenital renal failure.
What is the ICD-10 code for postprocedural anuria?
- N99.0 — Postprocedural (acute) (chronic) kidney failure.
What is the ICD-10 code for postrenal anuria?
- N13.8 — Other obstructive and reflux uropathy.
What is the ICD-10 code for puerperal anuria?
- O90.49 — Other postpartum acute kidney failure.
What is the ICD-10 code for traumatic anuria?
- T79.5 — Traumatic anuria (header code; choose a more specific subcode).
Is R34 billable?
- Yes. R34 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can R34 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict R34 as a principal diagnosis.
Is R34 a CC or MCC?
- No. R34 is neither a CC nor an MCC under MS-DRG v44.0.