ICD10BillableValid for clinical use
ICD-10 Code G12.1: Other inherited spinal muscular atrophy
Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026
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 other inherited spinal muscular atrophy 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
G10-G14Systemic atrophies primarily affecting the central nervous system
category
G12Spinal muscular atrophy and related syndromes
currentG12
Official coding notes
Inclusion terms
- Adult form spinal muscular atrophy
- Childhood form, type II spinal muscular atrophy
- Distal spinal muscular atrophy
- Juvenile form, type III spinal muscular atrophy [Kugelberg-Welander]
- Progressive bulbar palsy of childhood [Fazio-Londe]
- Scapuloperoneal form spinal muscular atrophy
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
Related codes
Sibling codes
Coverage-related procedures and services
CPT 95907high
NERVE CONDUCTION STUDIES; 1-2 STUDIES
Source: CMS coverage guidance
CPT 95912high
NERVE CONDUCTION STUDIES; 11-12 STUDIES
Source: CMS coverage guidance
CPT 95913high
NERVE CONDUCTION STUDIES; 13 OR MORE STUDIES
Source: CMS coverage guidance
CPT 95908high
NERVE CONDUCTION STUDIES; 3-4 STUDIES
Source: CMS coverage guidance
CPT 95909high
NERVE CONDUCTION STUDIES; 5-6 STUDIES
Source: CMS coverage guidance
CPT 95910high
NERVE CONDUCTION STUDIES; 7-8 STUDIES
Source: CMS coverage guidance
Mapped diagnoses and classifications
SNOMED_CT 85505000high
Adult spinal muscular atrophy
Source: SNOMED International ICD-10 map
SNOMED_CT 784391002high
Autosomal dominant adult-onset proximal spinal muscular atrophy
Source: SNOMED International ICD-10 map
SNOMED_CT 763067000high
Autosomal dominant congenital benign spinal muscular atrophy
Source: SNOMED International ICD-10 map
SNOMED_CT 1156837002high
Autosomal dominant distal hereditary motor neuropathy
Source: SNOMED International ICD-10 map
SNOMED_CT 230253001high
Bulbospinal neuronopathy
Source: SNOMED International ICD-10 map
SNOMED_CT 230247001high
Distal spinal muscular atrophy
Source: SNOMED International ICD-10 map
Coding guidelines
Compatibility
Legacy and official ICD code match exactly.
Legacy codes
G12.1
Common synonyms
Other inherited spinal muscular atrophy
Frequently asked questions
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.