E34.2 is the authoritative medical code for Ectopic hormone secretion, not elsewhere classified. This classification is used in medical billing and clinical recording to specify the clinical criteria for ectopic hormone secretion, not elsewhere classified (ICD-10-CM E34.2), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Ectopic hormone secretion, not elsewhere classified is a billable ICD-10-CM diagnosis code E34.2. Excludes1 (not coded here): ectopic ACTH syndrome E24.3; pseudohypoparathyroidism E20.1; galactorrhea N64.3; gynecomastia N62.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for E34.2 in the official ICD-10-CM tabular list.
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- ectopic ACTH syndrome E24.3
- pseudohypoparathyroidism E20.1
- galactorrhea N64.3
- gynecomastia N62
Frequently Asked Questions (FAQ) & Clinical Guidance
What can't be coded together with E34.2?
Per Excludes1 instructions, E34.2 must not be reported with: ectopic ACTH syndrome (E24.3); pseudohypoparathyroidism (E20.1); galactorrhea (N64.3); gynecomastia (N62).
Codes in This Family (22)
Official ICD-10-CM classifications in the same code family as E34.2, with their registry titles.
- E34 — Other endocrine disorders
- E34.0 — Carcinoid syndrome
- E34.00 — Carcinoid syndrome, unspecified
- E34.01 — Carcinoid heart syndrome
- E34.09 — Other carcinoid syndrome
- E34.1 — Other hypersecretion of intestinal hormones
- E34.3 — Short stature due to endocrine disorder
- E34.30 — Short stature due to endocrine disorder, unspecified
- E34.31 — Constitutional short stature
- E34.32 — Genetic causes of short stature
- E34.321 — Primary insulin-like growth factor-1 (IGF-1) deficiency
- E34.322 — Insulin-like growth factor-1 (IGF-1) resistance
- E34.328 — Other genetic causes of short stature
- E34.329 — Unspecified genetic causes of short stature
- E34.39 — Other short stature due to endocrine disorder
- E34.4 — Constitutional tall stature
- E34.5 — Androgen insensitivity syndrome
- E34.50 — Androgen insensitivity syndrome, unspecified
- E34.51 — Complete androgen insensitivity syndrome
- E34.52 — Partial androgen insensitivity syndrome
- E34.8 — Other specified endocrine disorders
- E34.9 — Endocrine disorder, unspecified
Indexed Clinical Terms (2)
Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.
- Ectopic, ectopia (congenital), hormone secretion NEC
- Secretion, hormone, ectopic NEC
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures: