What is the ICD-10 code for decreased urination?

The ICD-10 code for decreased urination, specifically oliguria and anuria, is R34. This code is used when urine output is significantly reduced.

How is oliguria documented for coding?

Oliguria should be documented with specific urine output measurements, such as <0.5 mL/kg/hr for at least 6 hours, to support the use of ICD-10 code R34.

ICD-10 Coding for Decreased Urination(R34, N17.9, N18.9)

Save

Learn about ICD-10 coding for decreased urination, including oliguria and anuria, with documentation requirements and clinical validation criteria.

Also known as:

OliguriaAnuriaLow Urine Output

Related ICD-10 Code Ranges

Complete code families applicable to Decreased Urination

R00-R99Primary Range

Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified

→

Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

Code	Description	When to Use	Key Documentation
R34	Anuria and oliguria	Use when urine output is significantly reduced, meeting oliguria or anuria criteria.	Urine output <0.5 mL/kg/hr for 6 hours Bladder scan showing PVR >300 mL
N17.9	Acute kidney injury, unspecified	Use when acute kidney injury is present with decreased urination.	Creatinine increase ≥0.3 mg/dL in 48 hours Urine output <0.5 mL/kg/hr for 6 hours

Primary ICD-10-CM Codes

Anuria and oliguria

R34Billable

Acute kidney failure, unspecified

N17.9Billable

Differential Codes

Alternative codes to consider when ruling out similar conditions

Urinary frequencyR35.0

Unspecified retention of urineR33.9

Chronic kidney disease, unspecifiedN18.9

Documentation & Coding Risks

Avoid these common issues when documenting Decreased Urination.

Failure to document urine output specifics

Impact

Clinical: May lead to misdiagnosis or inappropriate treatment., Regulatory: Non-compliance with coding standards., Financial: Potential claim denials or reduced reimbursement.

Mitigation

Train staff on documentation standards, Use templates to ensure complete documentation

Coding R34 without specific urine output documentation

Impact

Reimbursement: May lead to denied claims due to insufficient documentation., Compliance: Non-compliance with coding guidelines requiring specific metrics., Data Quality: Inaccurate data on patient condition severity.

Mitigation

Document precise urine output in mL/kg/hr over a specified time period.

Urine output documentation

Impact

Inadequate documentation of urine output can lead to audit issues.

Mitigation

Implement standardized documentation practices and regular audits.

Frequently Asked Questions

Documentation requirements, coding pitfalls and FAQs for conditions coded with R34.

Primary Code

R34

Anuria and oliguria

Quick Navigation

ICD-10 codes6

Coding risks3

FAQs2

ICD-10 Coding for Decreased Urination(R34, N17.9, N18.9)

Documentation & Coding Risks

Frequently Asked Questions

What is the ICD-10 code for decreased urination?

How is oliguria documented for coding?

Related condition guides