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ICD10

ICD-10 Code G12.2: Motor neuron disease

G12.2 is an ICD-10 diagnosis entry used to group records related to Motor neuron disease. You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen. ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Diseases of the nervous system (G00-G99).

What is this code?

ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. 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 motor neuron disease in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code may act more like a grouping or parent code, so a more specific child code may be used in final documentation when available.

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.
  • This entry may represent a broader category rather than the most specific billable code.

Code hierarchy

chapter
6Diseases of the nervous system (G00-G99)
block
G10-G14Systemic atrophies primarily affecting the central nervous system
category
G12Spinal muscular atrophy and related syndromes
currentG12

Where you may see this code

You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen.

Related specialists

NeurologistGeneral Physician

Coding guidelines

Compatibility

Legacy code aligns to an official FY 2026 category. Frontend should resolve to the official category page and surface the billable child codes.
Legacy codes
G12.2
Replacement codes
G12.20 — Motor neuron disease, unspecifiedG12.21 — Amyotrophic lateral sclerosisG12.22 — Progressive bulbar palsyG12.23 — Primary lateral sclerosisG12.24 — Familial motor neuron diseaseG12.25 — Progressive spinal muscle atrophyG12.29 — Other motor neuron disease

Common synonyms

Motor neuron disease

Frequently asked questions

Code details

CodeG12.2
SystemICD10
Display nameMotor neuron disease
ChapterDiseases of the nervous system (G00-G99)
BlockSystemic atrophies primarily affecting the central nervous system

Flags

BillableNo
Valid clinical useNo

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

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.