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E20.1

E20.1: Pseudohypoparathyroidism

Billable / specific codeICD-10-CM

E20.1 is a billable, specific ICD-10-CM code for pseudohypoparathyroidism. It is valid for submission on a claim.

Check E20.1 with the rest of the claim: free scrubber

Excludes1 inherited from the categories above E20.1

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)

Other codes that can never be billed with E20.1

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • E31Polyglandular dysfunction
  • E34Other endocrine disorders

Risk adjustment

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

Medicare coverage

E20.1 is named in 4 Medicare coverage policies: 4 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A57122Billing and Coding: Parathormone (Parathyroid Hormone)
  • A57189Billing and Coding: Serum Magnesium
  • A57326Billing and Coding: Electrocardiograms
  • A59186Billing and Coding: Magnesium

Alphabetic index entries that lead here

  • Pseudohypoparathyroidism
  • Pseudopseudohypoparathyroidism

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.