ICD-10-CM Alphabetic Index · FY 2026 13 Entries
Hyperfunction in the ICD-10-CM Index ICD-10-CM
The main term Hyperfunction carries 13 index entries pointing to 11 ICD-10-CM codes. Every indented line below refines the term by site, cause, or type. Verify any candidate code in the Tabular List before using it.
✓ Built from the official CMS FY 2026 index fileEffective Oct 1, 2025 – Sep 30, 2026
13
Index Entries
11
Codes Referenced
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Default Code
H
Letter
13 of 13 shown
ICD-10-CM
Index Entries Under Hyperfunction 13 entries · 11 codes
Hyperfunction
adrenal cortex, not associated with Cushing's syndrome E27.0
medulla E27.5
adrenomedullary E27.5
virilism E25.9
congenital E25.0
ovarian E28.8
pancreas K86.89
parathyroid (gland) E21.3
pituitary (gland) (anterior) E22.9
specified NEC E22.8
polyglandular E31.1
testicular E29.0
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Related Index Terms
Source: Centers for Medicare & Medicaid Services, FY 2026 ICD-10-CM Index to Diseases and Injuries release files, effective October 1, 2025 through September 30, 2026.
