ICD-10 C44.91
Billable / SpecificBasal cell carcinoma of skin, unspecified
About ICD-10-CM C44.91
ICD-10-CM code C44.91 represents Basal cell carcinoma of skin, unspecified. This is a billable/specific code in the Neoplasms chapter (block C44). The 2026 edition of ICD-10-CM C44.91 became effective on October 1, 2025.
Medicare LCD Coverage for C44.91
Local Coverage Determinations (LCDs) from CMS MACs that list C44.91 as a covered diagnosis.
Showing top 10 of 436 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing C44.91.
5 Medicare
CPT Codes Commonly Billed with C44.91
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 11102 Tangential skin biopsy — uncertain neoplasm skin, actinic keratosis, melanocytic nevi, skin cancer, melanoma, psoriasis, discoid lupus, skin disorder, rash, seborrheic keratosis, benign neoplasm, dermatitis, prurigo, dermatitis herpetiformis Dermatology
- 11104 Punch biopsy skin — uncertain skin neoplasm, skin cancer, melanoma, nevi, psoriasis, lupus, connective tissue disorder, pemphigus, bullous pemphigoid Dermatology
- 11106 Incisional biopsy skin — uncertain neoplasm, skin cancer, melanoma, nevi, actinic keratosis, BCC/SCC by site Dermatology
- 11600 Excision malignant lesion — skin cancer (BCC, SCC) all sites, melanoma, melanoma in situ Dermatology
- 17311 Mohs surgery first stage — skin cancer all sites, melanoma Dermatology
- 67921 CMS LCD: Billing and Coding: Blepharoplasty CMS LCD
- 67915 CMS LCD: Billing and Coding: Blepharoplasty CMS LCD
- 67922 CMS LCD: Billing and Coding: Blepharoplasty CMS LCD
- 67924 CMS LCD: Billing and Coding: Blepharoplasty CMS LCD
- 67911 CMS LCD: Billing and Coding: Blepharoplasty CMS LCD
Convert C44.91 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 |
|---|---|---|
| C44.91 | 17391 | 00000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To C44.91
Other codes in section C43-C44 (Melanoma and other malignant neoplasms of skin).
ICD-10 C44.91, Billing FAQ
Is ICD-10 code C44.91 billable? +
Yes, C44.91 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What CPT codes are commonly billed with C44.91? +
Procedures frequently paired with C44.91 include: 11102, 11104, 11106, 11600, 17311.
What ICD-9 codes does C44.91 map to? +
Per CMS GEMs, C44.91 maps to ICD-9 codes: 17391. 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 May 31, 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