Anuria and oliguria (R34) ICD-10-CM
The R34 code range covers anuria and oliguria with 1 ICD-10-CM diagnosis codes. 1 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Codes in the R34 Range 1 codes · 1 billable
- R34 Anuria and oliguria
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the R34 range.
Anuria
Absence of urine formation. It is usually associated with complete bilateral ureteral (URETER) obstruction, complete lower urinary tract obstruction, or unilateral ureteral obstruction when a solitary kidney is present.
Oliguria
Decreased URINE output that is below the normal range. Oliguria can be defined as urine output of less than or equal to 0.5 or 1 ml/kg/hr depending on the age.
Ureter
One of a pair of thick-walled tubes that transports urine from the KIDNEY PELVIS to the URINARY BLADDER.
Urine
Liquid by-product of excretion produced in the kidneys, temporarily stored in the bladder until discharge through the URETHRA.
About the R34 Code Range
ICD-10 code R34 is used to identify conditions characterized by reduced or absent urine output, specifically anuria and oliguria. These terms describe situations where urine production is extremely low or completely stopped, which can be critical indicators in medical assessments.
R34 covers a range of conditions involving diminished urine volume, including anuria (no urine output) and oliguria (markedly reduced urine output). This code also applies when urine output is suppressed following a medical procedure, as noted by synonyms like “anuria following procedure” and “oliguria following procedure.” Healthcare professionals use this code when documenting findings such as “24 hour urine volume below reference range” or “decreased urine output,” which are important for diagnosing and managing kidney function issues and related genitourinary symptoms. Understanding the ICD-10 code for anuria and oliguria helps coders precisely capture cases involving acute renal failure or other conditions that significantly alter urine secretion.
Questions About This Page
How many billable codes are in the R34 range?
Of the 1 codes in this range, 1 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the R34 range classify?
The range classifies anuria and oliguria. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
