G37.1

Billable

ChapterG00–G99

Ranksubcategory

Official Description

Central demyelination of corpus callosum

Metadata & Insights

•2026 ICD-10-CM Edition - Effective October 1, 2025.
•Billable/specific code (valid for reimbursement).
•Chapter 6: Diseases of the Nervous System (G00-G99).

General instructions are available for the parent sections:

View CH6 Notes

Clinical Hierarchy

CH6Diseases of the nervous system (G00-G99)

G35-G37Demyelinating diseases of the central nervous system (G35-G37)

G37Other demyelinating diseases of central nervous system

G37.1Central demyelination of corpus callosum

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to G37.1:

chapterCH6

Diseases of the nervous system (G00-G99)

View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to G37.1. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

3 raw paths

Demyelination, demyelinization1 unique routes

corpus callosum (central)→G37.1

Encephalopathy (acute)1 unique routes

demyelinating callosal→G37.1

Marchiafava (-Bignami) syndrome or disease1 unique routes

Direct index entry→G37.1

MS-DRG Classification

2026 v43.1

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

DRG 058

Multiple Sclerosis and Cerebellar Ataxia with MCC

DRG 059

Multiple Sclerosis and Cerebellar Ataxia with CC

DRG 060

Multiple Sclerosis and Cerebellar Ataxia without CC/MCC

Cross Reference

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