ICD-9-CM Codes ICD-9-PCS Codes

335.21 - Progressive muscular atrophy

GEM Conversion to ICD-10 CM

G12.21

Fs: 10000 – Amyotrophic lateral sclerosis

Sibling Codes

335.20

Amyotrophic lateral sclerosis

335.21

Progressive muscular atrophy

335.22

Progressive bulbar palsy

335.23

Pseudobulbar palsy

335.24

Primary lateral sclerosis

335.29

Other motor neuron disease

Parent Sibling Codes

335.0

Werdnig-Hoffmann disease

335.8

Other anterior horn cell diseases

335.9

Anterior horn cell disease, unspecified