E34.4 Constitutional tall stature

Billable ICD-10-CM code, FY2026.

Applicable to

• Constitutional gigantism

Applies from E34 Other endocrine disorders

Excludes1 (never code together)

• pseudohypoparathyroidism (E20.1)

Risk adjustment (HCC)

• CMS-HCC V22: HCC 23 — Other Significant Endocrine and Metabolic Disorders
• RxHCC V08: HCC 43 — Pituitary, Adrenal Gland, and Other Endocrine and Metabolic Disorders
• ESRD V24: HCC 23

MS-DRG index

Defines the logic of DRG(s) 643-645 in MDC 10.

Approximate ICD-9-CM (GEMs)

• 253.0 Acromegaly and gigantism (approximate)

Code annotations containing back-references to E34.4

Back-references to E34.4

• Type 1 Excludes: E22.0 Acromegaly and pituitary gigantism ("constitutional gigantism (E34.4)")
• Type 1 Excludes: E22.0 Acromegaly and pituitary gigantism ("constitutional tall stature (E34.4)")

Back-references to E34

• Code First: G63 Polyneuropathy in diseases classified elsewhere ("endocrine disease, except diabetes (E00-E07, E15-E16, E20-E34)")

Diagnosis Index entries for E34.4

• Gigantism (cerebral) (hypophyseal) (pituitary) › constitutional
• Tall stature, constitutional

Nearby codes

• 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 (this code)
• 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