MCMedicalCodingSoftware
Free trial
E20.0

E20.0: Idiopathic hypoparathyroidism

Billable / specific codeICD-10-CM

E20.0 is a billable, specific ICD-10-CM code for idiopathic hypoparathyroidism. It is valid for submission on a claim.

Check E20.0 with the rest of the claim: free scrubber

Excludes1 inherited from the categories above E20.0

A category’s note binds every code beneath it.

Written on E20: Hypoparathyroidism

  • Di George's syndrome (D82.1)
  • postprocedural hypoparathyroidism (E89.2)
  • tetany NOS (R29.0)
  • transitory neonatal hypoparathyroidism (P71.4)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

E20.0 is named in 12 Medicare coverage policies: 12 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A56416Billing and Coding: Assays for Vitamins and Metabolic Function
  • A56798Billing and Coding: Vitamin D Assay Testing
  • A56841Billing and Coding: Vitamin D; 25 hydroxy, includes fraction(s), if performed
  • A57122Billing and Coding: Parathormone (Parathyroid Hormone)

Alphabetic index entries that lead here

  • Hypoparathyroidism›idiopathic

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under E20

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.