ICD-10 E03.4
Billable / SpecificAtrophy of thyroid (acquired)
About ICD-10-CM E03.4
ICD-10-CM code E03.4 represents Atrophy of thyroid (acquired). This is a billable/specific code in the Endocrine, Nutritional, and Metabolic chapter (block E03). The 2026 edition of ICD-10-CM E03.4 became effective on October 1, 2025.
Type 1 Excludes
Pure excludes, these codes can never be coded together with E03.4. The conditions are mutually exclusive (e.g., congenital vs acquired forms).
- congenital atrophy of thyroid (E03.1)
Medicare LCD Coverage for E03.4
Local Coverage Determinations (LCDs) from CMS MACs that list E03.4 as a covered diagnosis.
Showing top 10 of 37 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing E03.4.
2 Cigna
5 Medicare
CPT Codes Commonly Billed with E03.4
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 76536 CMS LCD: Billing and Coding: Ultrasound, Soft Tissues of Head and Neck CMS LCD
Convert E03.4 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 |
|---|---|---|
| E03.4 | 2468 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To E03.4
Other codes in section E00-E07 (Disorders of thyroid gland).
ICD-10 E03.4, Billing FAQ
Is ICD-10 code E03.4 billable? +
Yes, E03.4 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What codes are Type 1 Excludes for E03.4? +
Type 1 Excludes (never code together with E03.4): congenital atrophy of thyroid (E03.1)
What CPT codes are commonly billed with E03.4? +
Procedures frequently paired with E03.4 include: 76536.
What ICD-9 codes does E03.4 map to? +
Per CMS GEMs, E03.4 maps to ICD-9 codes: 2468. 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 16, 2026.
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