ICD-10 N37
Billable / SpecificUrethral disorders in diseases classified elsewhere
About ICD-10-CM N37
ICD-10-CM code N37 represents Urethral disorders in diseases classified elsewhere. This is a billable/specific code in the Genitourinary System chapter (block N37). The 2026 edition of ICD-10-CM N37 became effective on October 1, 2025.
Type 1 Excludes
Pure excludes, these codes can never be coded together with N37. The conditions are mutually exclusive (e.g., congenital vs acquired forms).
- urethritis (in):
- candidal infection (B37.41)
- chlamydial (A56.01)
- gonorrhea (A54.01)
- syphilis (A52.76)
- trichomonal infection (A59.03)
- tuberculosis (A18.13)
Coding Notes
Code First
- underlying disease
Medicare LCD Coverage for N37
Local Coverage Determinations (LCDs) from CMS MACs that list N37 as a covered diagnosis.
Showing top 10 of 19 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing N37.
1 Cigna
2 Medicare
CPT Codes Commonly Billed with N37
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
We don't have CPT pairings indexed for this specific code yet. Use the CPT search above to find common procedures, or check your payer's published medical policy for code-specific guidance.
Convert N37 to ICD-9-CM
Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.
| ICD-10 | ICD-9 | Mapping Flags |
|---|---|---|
| N37 | 59801 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To N37
Other codes in section N30-N39 (Other diseases of the urinary system).
ICD-10 N37, Billing FAQ
Is ICD-10 code N37 billable? +
Yes, N37 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What codes are Type 1 Excludes for N37? +
Type 1 Excludes (never code together with N37): urethritis (in):; candidal infection (B37.41); chlamydial (A56.01)
What ICD-9 codes does N37 map to? +
Per CMS GEMs, N37 maps to ICD-9 codes: 59801. Useful for legacy data review and historical claim analysis.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on June 1, 2026.
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