E20.812

Billable

ChapterE00–E89

Ranksubcategory

Official Description

Autoimmune hypoparathyroidism

Metadata & Insights

•2026 ICD-10-CM Edition - Effective October 1, 2025.
•Billable/specific code (valid for reimbursement).
•Chapter 4: Endocrine, Nutritional and Metabolic Diseases (E00-E89).

Instructional Notes

Code First

, if applicable, underlying condition such as:
autoimmune polyglandular failure (E31.0)
Schmidt's syndrome (E31.0)

General instructions are available for the parent sections:

View CH4 Notes View E20-E35 Notes View E20 Notes

Clinical Hierarchy

CH4Endocrine, nutritional and metabolic diseases (E00-E89)

E20-E35Disorders of other endocrine glands (E20-E35)

E20Hypoparathyroidism

E20.8Other hypoparathyroidism

E20.81Hypoparathyroidism due to impaired parathyroid hormone secretion

E20.812Autoimmune hypoparathyroidism

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to E20.812:

categoryE20

Hypoparathyroidism

View context instructions

blockE20-E35

Disorders of other endocrine glands (E20-E35)

View context instructions

chapterCH4

Endocrine, nutritional and metabolic diseases (E00-E89)

View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to E20.812. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

1 raw paths

Hypoparathyroidism1 unique routes

autoimmune→E20.812

MS-DRG Classification

2026 v43.1

This code is grouped within the following Diagnosis Related Group(s) for clinical reimbursement:

DRG 643

Endocrine Disorders with MCC

DRG 644

Endocrine Disorders with CC

DRG 645

Endocrine Disorders without CC/MCC

DRG 791

Prematurity with Major Problems

DRG 793

Full Term Neonate with Major Problems

Cross Reference

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