ICD-10 E89.0
Billable / SpecificPostprocedural hypothyroidism
About ICD-10-CM E89.0
ICD-10-CM code E89.0 represents Postprocedural hypothyroidism. This is a billable/specific code in the Endocrine, Nutritional, and Metabolic chapter (block E89). The 2026 edition of ICD-10-CM E89.0 became effective on October 1, 2025.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under E89.0. Per CMS ICD-10-CM Tabular 2026.
- Postirradiation hypothyroidism
- Postsurgical hypothyroidism
Medicare LCD Coverage for E89.0
Local Coverage Determinations (LCDs) from CMS MACs that list E89.0 as a covered diagnosis.
Showing top 10 of 53 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing E89.0.
2 Medicare
1 Aetna
CPT Codes Commonly Billed with E89.0
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 84443 TSH — hypothyroidism, hyperthyroidism, thyroiditis, weight loss, weight gain, post-surgical hypothyroidism, fatigue, routine exam, screening Laboratory
Convert E89.0 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 |
|---|---|---|
| E89.0 | 2440 | 10000 |
| E89.0 | 2441 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To E89.0
Other codes in section E89 (Postprocedural endocrine and metabolic complications and disorders, not elsewhere classified).
ICD-10 E89.0, Billing FAQ
Is ICD-10 code E89.0 billable? +
Yes, E89.0 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 E89.0? +
ICD-10 E89.0 includes: Postirradiation hypothyroidism; Postsurgical hypothyroidism.
What CPT codes are commonly billed with E89.0? +
Procedures frequently paired with E89.0 include: 84443.
What ICD-9 codes does E89.0 map to? +
Per CMS GEMs, E89.0 maps to ICD-9 codes: 2440, 2441. 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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