ICD-10 C30.0
Billable / Specific HCC v28: 11Malignant neoplasm of nasal cavity
About ICD-10-CM C30.0
ICD-10-CM code C30.0 represents Malignant neoplasm of nasal cavity. This is a billable/specific code in the Neoplasms chapter (block C30). The 2026 edition of ICD-10-CM C30.0 became effective on October 1, 2025.
Coding Tips for C30.0
Specialist guidance from the PayerReady Medical Coding Team. Specificity warnings, HCC capture rules, sequencing notes.
C30.0 is a CMS-HCC v28 risk-adjustment code (category 11). To count for the patient Risk Adjustment Factor (RAF), document the diagnosis with MEAT language each calendar year: Monitored, Evaluated, Assessed, Treated. A diagnosis on the problem list alone does not satisfy CMS RADV audit standards. Include the diagnosis in the assessment with current status and current treatment plan.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under C30.0. Per CMS ICD-10-CM Tabular 2026.
- Malignant neoplasm of cartilage of nose
- Malignant neoplasm of nasal concha
- Malignant neoplasm of internal nose
- Malignant neoplasm of septum of nose
- Malignant neoplasm of vestibule of nose
Type 1 Excludes
Pure excludes, these codes can never be coded together with C30.0. The conditions are mutually exclusive (e.g., congenital vs acquired forms).
- malignant neoplasm of nasal bone (C41.0)
- malignant neoplasm of nose NOS (C76.0)
- malignant neoplasm of olfactory bulb (C72.2-)
- malignant neoplasm of posterior margin of nasal septum and choana (C11.3)
- malignant melanoma of skin of nose (C43.31)
- malignant neoplasm of turbinates (C41.0)
- other and unspecified malignant neoplasm of skin of nose (C44.301, C44.311, C44.321, C44.391)
Medicare Advantage HCC Impact
Capture this diagnosis annually for accurate risk adjustment. Missed HCC captures are the #1 revenue leak in Medicare Advantage risk programs.
Medicare LCD Coverage for C30.0
Local Coverage Determinations (LCDs) from CMS MACs that list C30.0 as a covered diagnosis.
Showing top 10 of 1,152 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing C30.0.
2 Aetna
2 Cigna
5 Medicare
CPT Codes Commonly Billed with C30.0
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 11922 CMS LCD: Billing and Coding: Cosmetic and Reconstructive Surgery CMS LCD
- 19369 CMS LCD: Billing and Coding: Cosmetic and Reconstructive Surgery CMS LCD
- 11951 CMS LCD: Billing and Coding: Cosmetic and Reconstructive Surgery CMS LCD
- 19357 CMS LCD: Billing and Coding: Cosmetic and Reconstructive Surgery CMS LCD
- 19396 CMS LCD: Billing and Coding: Cosmetic and Reconstructive Surgery CMS LCD
- 11921 CMS LCD: Billing and Coding: Cosmetic and Reconstructive Surgery CMS LCD
- 15847 CMS LCD: Billing and Coding: Cosmetic and Reconstructive Surgery CMS LCD
- 15824 CMS LCD: Billing and Coding: Cosmetic and Reconstructive Surgery CMS LCD
- 30420 CMS LCD: Billing and Coding: Cosmetic and Reconstructive Surgery CMS LCD
- 21235 CMS LCD: Billing and Coding: Cosmetic and Reconstructive Surgery CMS LCD
Convert C30.0 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 |
|---|---|---|
| C30.0 | 1600 | 00000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To C30.0
Other codes in section C30-C39 (Malignant neoplasms of respiratory and intrathoracic organs).
ICD-10 C30.0, Billing FAQ
Is ICD-10 code C30.0 billable? +
Yes, C30.0 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 C30.0? +
ICD-10 C30.0 includes: Malignant neoplasm of cartilage of nose; Malignant neoplasm of nasal concha; Malignant neoplasm of internal nose, and 2 more clinical synonyms.
What codes are Type 1 Excludes for C30.0? +
Type 1 Excludes (never code together with C30.0): malignant neoplasm of nasal bone (C41.0); malignant neoplasm of nose NOS (C76.0); malignant neoplasm of olfactory bulb (C72.2-)
Does C30.0 affect Medicare Advantage HCC risk adjustment? +
Yes. C30.0 maps to CMS-HCC v28 category 11. Capture this diagnosis annually for accurate Medicare Advantage risk score.
What CPT codes are commonly billed with C30.0? +
Procedures frequently paired with C30.0 include: 11922, 19369, 11951, 19357, 19396.
What ICD-9 codes does C30.0 map to? +
Per CMS GEMs, C30.0 maps to ICD-9 codes: 1600. 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 July 17, 2026.
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