ICD-10 B37.2
Billable / SpecificCandidiasis of skin and nail
About ICD-10-CM B37.2
ICD-10-CM code B37.2 represents Candidiasis of skin and nail. This is a billable/specific code in the Infectious and Parasitic Diseases chapter (block B37). The 2026 edition of ICD-10-CM B37.2 became effective on October 1, 2025.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under B37.2. Per CMS ICD-10-CM Tabular 2026.
- Candidal onychia
- Candidal paronychia
Type 2 Excludes
Not included here, the excluded code is not part of B37.2, but a patient may have both conditions at the same time. Both codes may be coded together when applicable.
- diaper dermatitis (L22)
Medicare LCD Coverage for B37.2
Local Coverage Determinations (LCDs) from CMS MACs that list B37.2 as a covered diagnosis.
Showing top 10 of 45 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing B37.2.
2 Medicare
CPT Codes Commonly Billed with B37.2
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 B37.2 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 |
|---|---|---|
| B37.2 | 1123 | 00000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To B37.2
Other codes in section B35-B49 (Mycoses).
ICD-10 B37.2, Billing FAQ
Is ICD-10 code B37.2 billable? +
Yes, B37.2 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What other names or terms map to B37.2? +
ICD-10 B37.2 includes: Candidal onychia; Candidal paronychia.
What codes are Type 2 Excludes for B37.2? +
Type 2 Excludes (may be coded together when both conditions exist): diaper dermatitis (L22)
What ICD-9 codes does B37.2 map to? +
Per CMS GEMs, B37.2 maps to ICD-9 codes: 1123. Useful for legacy data review and historical claim analysis.
Get the full PayerReady toolkit
Free access to CPT/ICD-10 lookup, denial appeals, fee comparator, and claim auditing with credentialing enrollment.
Start free →Run this code through our claim audit tool
Check NCCI bundling, MUE limits, and modifier logic before submission.
Try the auditor →Did this page help?
Quick signal so we know what to improve.
If you want a code reference page that doesn't exist yet, email coding@payerready.com.
Tell us what's missing or wrong: coding@payerready.com. We respond within 5 business days.
Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on June 1, 2026.
Powered by 11K CPT · 98K ICD-10 · 860K MPFS rates · 4.5M NCCI edits · 9.5M NPIs. Our data methodology · About our coding team