ICD-10-CM Diagnosis code G12.1

Other inherited spinal muscular atrophy

Code Details

Body System Diseases of the nervous system and sense organs
Chronic Condition Yes

Coding Guidelines for G12.1

G12.1 is a valid ICD-10-CM diagnosis code meaning 'Other inherited spinal muscular atrophy'.

It is also suitable for:

  • 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

Complications & Comorbid Conditions (CC/MCC) Rules for G12.1

When G12.1 is used as a secondary diagnostic code, the patient's visit may be considered to have Complications & Comorbid Conditions (CC) or Major Complications & Comorbid Conditions (MCC).

Exclusions apply. When the primary diagnostic code is is in the exclusion list, the patient visit CC/MCC does not qualify for a CC or MCC.

CC/MCC grouping rules are adjusted each year, so check the rules for the fiscal year of the patient's discharge date.

CC/MCC Rules for G12.1

DRG Mapping Rules for G12.1

Diagnostic codes are the first step in the DRG mapping process.

The patient's primary diagnostic code is the most important. Assuming the patient's primary diagnostic code is G12.1, look in the list below to see which MDC's "Assignment of Diagnosis Codes" is first. That is the MDC that the patient will be grouped into.

From there, check the subsections of the MDC listed. The patient will be mapped into the first subsection for which the treatment performed on the patient meet the listed requirements of that subsection.

DRG grouping rules are adjusted each year, so make sure to check the rules for the fiscal year of the patient's discharge date.

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