ICD-10 D38.5
Billable / SpecificNeoplasm of uncertain behavior of other respiratory organs
About ICD-10-CM D38.5
ICD-10-CM code D38.5 represents Neoplasm of uncertain behavior of other respiratory organs. This is a billable/specific code in the Neoplasms chapter (block D38). The 2026 edition of ICD-10-CM D38.5 became effective on October 1, 2025.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under D38.5. Per CMS ICD-10-CM Tabular 2026.
- Neoplasm of uncertain behavior of accessory sinuses
- Neoplasm of uncertain behavior of cartilage of nose
- Neoplasm of uncertain behavior of middle ear
- Neoplasm of uncertain behavior of nasal cavities
Type 1 Excludes
Pure excludes, these codes can never be coded together with D38.5. The conditions are mutually exclusive (e.g., congenital vs acquired forms).
- neoplasm of uncertain behavior of ear (external) (skin) (D48.5)
- neoplasm of uncertain behavior of nose NOS (D48.7)
- neoplasm of uncertain behavior of skin of nose (D48.5)
Medicare LCD Coverage for D38.5
Local Coverage Determinations (LCDs) from CMS MACs that list D38.5 as a covered diagnosis.
Showing top 10 of 204 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing D38.5.
1 Cigna
5 Medicare
CPT Codes Commonly Billed with D38.5
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 D38.5 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 |
|---|---|---|
| D38.5 | 2359 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To D38.5
Other codes in section D37-D48 (Neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes).
ICD-10 D38.5, Billing FAQ
Is ICD-10 code D38.5 billable? +
Yes, D38.5 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 D38.5? +
ICD-10 D38.5 includes: Neoplasm of uncertain behavior of accessory sinuses; Neoplasm of uncertain behavior of cartilage of nose; Neoplasm of uncertain behavior of middle ear, and 1 more clinical synonyms.
What codes are Type 1 Excludes for D38.5? +
Type 1 Excludes (never code together with D38.5): neoplasm of uncertain behavior of ear (external) (skin) (D48.5); neoplasm of uncertain behavior of nose NOS (D48.7); neoplasm of uncertain behavior of skin of nose (D48.5)
What ICD-9 codes does D38.5 map to? +
Per CMS GEMs, D38.5 maps to ICD-9 codes: 2359. 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 May 31, 2026.
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