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ICD-10-CM Code G12.1
Other inherited spinal muscular atrophy

Billable Code
Billable codes are sufficient justification for admission to an acute care hospital when used a principal diagnosis.
| ICD-10 from 2011 - 2016

G12.1 is a billable ICD code used to specify a diagnosis of other inherited spinal muscular atrophy. A 'billable code' is detailed enough to be used to specify a medical diagnosis.

The ICD code G121 is used to code Spinal and bulbar muscular atrophy

Spinal and bulbar muscular atrophy (SBMA), also known as spinobulbar muscular atrophy, bulbo-spinal atrophy, X-linked bulbospinal neuropathy (XBSN), X-linked spinal muscular atrophy type 1 (SMAX1), Kennedy's disease (KD), and many other names — is a debilitating neurodegenerative disorder resulting in muscle cramps and progressive weakness due to degeneration of motor neurons in the brain stem and spinal cord.

Specialty: Neurology
MeSH Codes: D055534, D010244
ICD 9 Codes: 335.1, 335.2
Source: Wikipedia

Coding Notes for G12.1 Info for medical coders on how to properly use this ICD-10 code

Inclusion Terms:
Inclusion Terms
Inclusion Terms are a list of concepts for which a specific code is used. The list of Inclusion Terms is useful for determining the correct code in some cases, but the list is not necessarily exhaustive.
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

MS-DRG Mapping

  • DRG Group #056-057 - Degenerative nervous system disorders with MCC.
  • DRG Group #056-057 - Degenerative nervous system disorders without MCC.

Related Concepts SNOMET-CT

  • Age at onset of clinical finding (observable entity)
  • < 18.0 years

ICD-10-CM Alphabetical Index References for 'G12.1 - Other inherited spinal muscular atrophy'

The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code G12.1. Click on any term below to browse the alphabetical index.

Kugelberg-Welander disease (G12.1)
Fazio-Londe disease or syndrome (G12.1)


Kugelberg-Welander disease (approximate match)

This is the official approximate match mapping between ICD9 and ICD10, as provided by the General Equivalency mapping crosswalk. This means that while there is no exact mapping between this ICD10 code G12.1 and a single ICD9 code, 335.11 is an approximate match for comparison and conversion purposes.

Parent Code: G12 - Spinal muscular atrophy and related syndromes

** This Document Provided By ICD.Codes **
Source: http://icd.codes/icd10cm/G121