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ICD-10 Code G37.3: Acute transverse myelitis in demyelinating disease of central nervous system

G37.3 is a billable ICD-10 diagnosis code used to classify Acute transverse myelitis in demyelinating disease of central nervous system in medical records and claims. You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records. ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Diseases of the nervous system (G00-G99).

What is this code?

ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Diseases of the nervous system (G00-G99).

When is it used?

  • May be used when a clinician documents acute transverse myelitis in demyelinating disease of central nervous system in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code can be used as a clinically usable diagnosis entry in standardized coding workflows.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.

Code hierarchy

chapter
6Diseases of the nervous system (G00-G99)
block
G35-G37Demyelinating diseases of the central nervous system
category
G37Other demyelinating diseases of central nervous system
currentG37

Official coding notes

Inclusion terms
  • Acute transverse myelitis NOS
  • Acute transverse myelopathy
Excludes1 (do not code together)
  • acute flaccid myelitis (G04.82)
  • multiple sclerosis (G35-)
  • neuromyelitis optica [Devic] (G36.0)

Where you may see this code

You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.

Related specialists

NeurologistGeneral Physician

Coding guidelines

Compatibility

Legacy and official ICD code match exactly.
Legacy codes
G37.3

Common synonyms

Acute transverse myelitis in demyelinating disease of central nervous system

Frequently asked questions

Code details

CodeG37.3
SystemICD10
Display nameAcute transverse myelitis in demyelinating disease of central nervous system
ChapterDiseases of the nervous system (G00-G99)
BlockDemyelinating diseases of the central nervous system

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

Index terms

Matched terms
Myelitis(acute) (ascending) (childhood) (chronic) (descending) (diffuse) (disseminated) (idiopathic) (pressure) (progressive) (spinal cord) (subacute)Myelopathy(spinal cord)

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.