ICD-10-CM Alphabetic Index · FY 2026 11 Entries
Hypoparathyroidism in the ICD-10-CM Index ICD-10-CM
The main term Hypoparathyroidism carries 11 index entries pointing to 9 ICD-10-CM codes. The default entry is E20.9, the code the bare main term maps to; 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
11
Index Entries
9
Codes Referenced
E20.9
Default Code
H
Letter
11 of 11 shown
ICD-10-CM
Index Entries Under Hypoparathyroidism 11 entries · 9 codes
Hypoparathyroidism E20.9
autoimmune E20.812
due to impaired parathyroid hormone secretion, unspecified E20.819
familial E20.89
isolated E20.818
idiopathic E20.0
neonatal, transitory P71.4
postprocedural E89.2
secondary, in diseases classified elsewhere E20.811
specified NEC E20.89
due to impaired parathyroid hormone secretion E20.818
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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.
