ICD-10 N23
Billable / SpecificUnspecified renal colic
About ICD-10-CM N23
ICD-10-CM code N23 represents Unspecified renal colic. This is a billable/specific code in the Genitourinary System chapter (block N23). The 2026 edition of ICD-10-CM N23 became effective on October 1, 2025.
Medicare LCD Coverage for N23
Local Coverage Determinations (LCDs) from CMS MACs that list N23 as a covered diagnosis.
Showing top 10 of 12 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing N23.
1 Cigna
2 Medicare
CPT Codes Commonly Billed with N23
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 N23 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 |
|---|---|---|
| N23 | 7880 | 00000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To N23
Other codes in section N20-N23 (Urolithiasis).
ICD-10 N23, Billing FAQ
Is ICD-10 code N23 billable? +
Yes, N23 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What ICD-9 codes does N23 map to? +
Per CMS GEMs, N23 maps to ICD-9 codes: 7880. 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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