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v1.0.0
ICD-10 Guide
DiagnosesRecurrent Infection

Recurrent Infection

ICD-10 Coding for Recurrent Infection(N39.0, Z87.440, A41.9)

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

Diagnosis Overview

What is Recurrent Infection?
Essential facts and insights about Recurrent Infection

Key Clinical Considerations:

  • Recurrent urinary tract infections (UTIs) with symptoms such as dysuria, frequency, urgency, and suprapubic pain
  • Urinalysis showing leukocytes, nitrites, and bacteria; urine culture confirming the presence of uropathogens
  • Physical exam may reveal tenderness in the suprapubic area or costovertebral angle tenderness

Clinical Information

Clinical Criteria & Documentation Requirements

  • Document frequency and duration of infections, previous treatments, and response to therapy
  • Use specific coding terminology such as 'recurrent UTI' or 'chronic cystitis'
  • Examples include: 'Patient presents with recurrent UTIs, treated with antibiotics, with a history of 3 infections in the past 6 months.'

Coding Guidelines

Usage Guidelines & Examples

  • Usage guidelines emphasize the need for specificity in recurrent infections.
  • Common errors include using unspecified codes or failing to document recurrence.

Code Exclusions

Important Exclusions

  • Acute cystitis (N30.0) and pyelonephritis (N10) are excluded as they are not classified as recurrent infections.
  • Alternative codes may include those for specific pathogens identified.

Related ICD-10 Codes

Primary Codes
N39.0
Urinary tract infection, site not specified
N30.9
Cystitis, unspecified
Ancillary Codes
B96.2
Differential Codes
N11.9

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Urology

Specialty Applications

  • Adult and pediatric populations with recurrent UTIs
  • Outpatient urology clinics and inpatient 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?

Include patient history, frequency of infections, and treatment responses.

Billing considerations?

Ensure accurate coding to reflect recurrent nature for appropriate reimbursement.