Anuria and oliguria
In Symptoms and signs involving the genitourinary system (R30-R39), chapter 18: Symptoms, Signs and Abnormal Clinical and Laboratory Findings
- R34 is billable and valid on claims for FY 2027. If the record has more detail, check the other codes under R30-R39 below.
- As a secondary diagnosis it is not a CC or MCC, so it doesn't raise the MS-DRG payment.
- Doesn't count toward a Medicare Advantage risk score (no HCC in V28).
- AHRQ's Chronic Condition Indicator classes it as not chronic (an acute or short-term condition).
Also indexed as: Anuria; Deficiency, secretion, urine; Ischuria; Oliguria; Secretion, urinary, suppression; Suppression, urine, urinary secretion; Urine, secretion, deficient; Urodialysis
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Instructional notes
Official coding guidelines
From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.
Covers when to report symptom, sign, and abnormal finding codes (R00-R99), plus specific rules for falls, coma scales, non-infectious SIRS, death NOS, and NIHSS scores.
- Use of symptom codes (page 75)
- Use of a symptom code with a definitive diagnosis code (page 75)
- Combination codes that include symptoms (page 75)
- Repeated falls (page 76)
- Coma (page 76)
- Functional quadriplegia (page 76)
- SIRS due to Non-Infectious Process (page 77)
- Death NOS (page 77)
Other codes under R30-R39
Symptoms and signs involving the genitourinary system (R30-R39)
R34 MS-DRGs
As the principal diagnosis, R34 groups to MS-DRG 673, 674, 675, 682, 683, or 684 (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.
Related conditions
Grouped by AHRQ's Clinical Classifications Software Refined (CCSR), which sorts every diagnosis code into clinically meaningful categories.
R34 is in Genitourinary signs and symptoms (SYM011, its default category), with 54 codes. Others in it:
Medicare coverage articles listing R34
These 3 Medicare billing and coding articles list R34 as a diagnosis that supports medical necessity for the services they cover. From the CMS Medicare Coverage Database; check your own contractor's article before billing.
Other codes that refer to R34
Notes on these codes point to R34.
- O90.4 Excludes1: anuria and oliguria (R34)
About the condition
Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.
Urine and Urination
Your kidneys make urine by filtering wastes and extra water from your blood. The waste is called urea. Your blood carries it to the kidneys. From the kidneys, urine travels down two thin tubes called ureters to the bladder. The bladder stores urine until you are ready to urinate. It swells into a round shape when it is full and gets smaller when empty. If your urinary system is healthy, your bladder can hold up to 16 ounces (2 cups) of urine comfortably for 2 to 5 hours.
Read more about urine and urination on MedlinePlusCode history
Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.
ICD-9-CM equivalent
Legacy crosswalk from the CMS General Equivalence Mappings (last updated 2018).
- 788.5 Oliguria and anuria