ICD-10 E34.2
Billable / SpecificEctopic hormone secretion, not elsewhere classified
About ICD-10-CM E34.2
ICD-10-CM code E34.2 represents Ectopic hormone secretion, not elsewhere classified. This is a billable/specific code in the Endocrine, Nutritional, and Metabolic chapter (block E34). The 2026 edition of ICD-10-CM E34.2 became effective on October 1, 2025.
Type 1 Excludes
Pure excludes, these codes can never be coded together with E34.2. The conditions are mutually exclusive (e.g., congenital vs acquired forms).
- ectopic ACTH syndrome (E24.3)
Medicare LCD Coverage for E34.2
Local Coverage Determinations (LCDs) from CMS MACs that list E34.2 as a covered diagnosis.
Showing top 10 of 57 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing E34.2.
5 Medicare
CPT Codes Commonly Billed with E34.2
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 77081 CMS LCD: Billing and Coding: Bone Mass Measurement CMS LCD
- 0556T CMS LCD: Billing and Coding: Bone Mass Measurement CMS LCD
- 78350 CMS LCD: Billing and Coding: Bone Mass Measurement CMS LCD
- 0554T CMS LCD: Billing and Coding: Bone Mass Measurement CMS LCD
- 77085 CMS LCD: Billing and Coding: Bone Mass Measurement CMS LCD
- 0558T CMS LCD: Billing and Coding: Bone Mass Measurement CMS LCD
- 0555T CMS LCD: Billing and Coding: Bone Mass Measurement CMS LCD
- 0557T CMS LCD: Billing and Coding: Bone Mass Measurement CMS LCD
- 77078 CMS LCD: Billing and Coding: Bone Mass Measurement CMS LCD
- 76977 CMS LCD: Billing and Coding: Bone Mass Measurement CMS LCD
Convert E34.2 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 |
|---|---|---|
| E34.2 | 2593 | 00000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To E34.2
Other codes in section E20-E35 (Disorders of other endocrine glands).
ICD-10 E34.2, Billing FAQ
Is ICD-10 code E34.2 billable? +
Yes, E34.2 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 E34.2? +
Type 1 Excludes (never code together with E34.2): ectopic ACTH syndrome (E24.3)
What CPT codes are commonly billed with E34.2? +
Procedures frequently paired with E34.2 include: 77081, 0556T, 78350, 0554T, 77085.
What ICD-9 codes does E34.2 map to? +
Per CMS GEMs, E34.2 maps to ICD-9 codes: 2593. 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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