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ICD-10-CM Code G12.0
Infantile spinal muscular atrophy, type I [Werdnig-Hoffman]

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

G12.0 is a billable ICD code used to specify a diagnosis of infantile spinal muscular atrophy, type I [Werdnig-Hoffman]. A 'billable code' is detailed enough to be used to specify a medical diagnosis.

The ICD code G120 is used to code Spinal muscular atrophy

Proximal spinal muscular atrophy (SMA) is an autosomal recessive disease caused by a genetic defect in the SMN1 gene, which encodes SMN, a protein widely expressed in all eukaryotic cells. SMN is apparently selectively necessary for survival of motor neurons, as diminished abundance of the protein results in loss of function of neuronal cells in the anterior horn of the spinal cord and subsequent system-wide muscle wasting (atrophy).

Specialty: Medical Genetics
MeSH Codes: D014897, D014897
ICD 9 Codes: 335.0, 335.1

Location of neurons affected by spinal muscular atrophy in the spinal cord

Source: Wikipedia

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

  • < 1.0 year
  • Age at onset of clinical finding (observable entity)

ICD-10-CM Alphabetical Index References for 'G12.0 - Infantile spinal muscular atrophy, type I [Werdnig-Hoffman]'

The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code G12.0. Click on any term below to browse the alphabetical index.

Werdnig-Hoffmann syndrome(muscular atrophy) (G12.0)


Werdnig-Hoffmann disease (exact match)

This is the official exact match mapping between ICD9 and ICD10, as provided by the General Equivalency mapping crosswalk. This means that in all cases where the ICD9 code 335.0 was previously used, G12.0 is the appropriate modern ICD10 code.

Parent Code: G12 - Spinal muscular atrophy and related syndromes

** This Document Provided By ICD.Codes **
Source: http://icd.codes/icd10cm/G120