ICD-10 D44.0
Billable / SpecificNeoplasm of uncertain behavior of thyroid gland
About ICD-10-CM D44.0
ICD-10-CM code D44.0 represents Neoplasm of uncertain behavior of thyroid gland. This is a billable/specific code in the Neoplasms chapter (block D44). The 2026 edition of ICD-10-CM D44.0 became effective on October 1, 2025.
Medicare LCD Coverage for D44.0
Local Coverage Determinations (LCDs) from CMS MACs that list D44.0 as a covered diagnosis.
Showing top 10 of 456 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing D44.0.
1 Cigna
5 Medicare
CPT Codes Commonly Billed with D44.0
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 76942 Ultrasound-guided thyroid biopsy — thyroid nodule, multinodular goiter, hyperthyroidism, thyroiditis, thyroid cancer, thyroid neoplasm, lymphadenopathy, abnormal thyroid function Endocrinology
Convert D44.0 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 |
|---|---|---|
| D44.0 | 2374 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To D44.0
Other codes in section D37-D48 (Neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes).
ICD-10 D44.0, Billing FAQ
Is ICD-10 code D44.0 billable? +
Yes, D44.0 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 D44.0? +
Procedures frequently paired with D44.0 include: 76942.
What ICD-9 codes does D44.0 map to? +
Per CMS GEMs, D44.0 maps to ICD-9 codes: 2374. 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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