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v1.0.0
ICD-10 Guide
DiagnosesUrination Frequency

Urination Frequency

ICD-10 Coding for Urination Frequency(R35.0, R35.1)

PRIMARY SPECIALTYUrology
COMPLEXITYHigh
LAST UPDATED09/15/2025
Sam Tuffun, PT, DPT
Physical Therapist | Medical Coding & Billing Contributor

Diagnosis Overview

What is Urination Frequency?
Essential facts and insights about Urination Frequency

Key Clinical Considerations:

  • Increased frequency of urination (more than 8 times in 24 hours)
  • Nocturia (waking at night to urinate)
  • Urgency or inability to delay urination

Clinical Information

Clinical Criteria & Documentation Requirements

  • Patient's urination frequency history
  • Associated symptoms (e.g., pain, urgency)
  • Previous treatments and outcomes

Coding Guidelines

Usage Guidelines & Examples

  • Use R35.0 for frequency without infection; use N39.0 if infection is present.
  • Common errors include misclassifying frequency as urgency without proper documentation.

Code Exclusions

Important Exclusions

  • Conditions like diabetes insipidus or bladder cancer
  • Alternative codes for related urinary symptoms

Related ICD-10 Codes

Primary Codes
R35.0
Frequency of micturition
N39.0
Urinary tract infection, site not specified
Ancillary Codes
N39.0
Differential Codes
R35.1
R35.1
when nocturnal urination is the primary symptom.
R35.0
R35.0
when daytime urination is the primary symptom.

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Urology

Specialty Applications

  • Adults with urinary symptoms
  • Urology clinics and primary care settings

Coding Complexity

High Complexity

This diagnosis requires careful attention to:

  • Comprehensive clinical documentation
  • Accurate code selection based on clinical criteria
  • Proper exclusion considerations
  • Specialty-specific coding guidelines

Documentation

Documentation Templates

Billing Information

Billing Considerations

  • Ensure proper documentation for billing
  • Verify code specificity requirements
  • Check for any additional codes needed
  • Review payer-specific guidelines

Common Issues

  • Insufficient clinical documentation
  • Incorrect code selection
  • Missing supporting diagnoses
  • Timing and frequency documentation

Frequently Asked Questions

Documentation requirements?

Document patient's urination patterns, associated symptoms, and any relevant medical history.

Billing considerations?

Ensure accurate coding based on specific symptoms and associated conditions to avoid denials.