DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

G12 Spinal muscular atrophy and related syndromes

  • Header · not billable

G12 is not billable. The category heads 11 billable codes in FY2027, grouped under 5 subdivisions.

Index → code

  • Labioglossal paralysis → G12.29
  • Kugelberg-Welander disease → G12.1
  • Duchenne-Aran muscular atrophy → G12.21

Where it sits

  1. Chapter 6 Diseases of the nervous system (G00-G99)
  2. G10-G14 Systemic atrophies primarily affecting the central nervous system (G10-G14)
  3. G12 Spinal muscular atrophy and related syndromes
Billable codes
11
Subdivisions
5
CC / MCC codes
11 / 0
HCC V28 codes
11
New FY2027
0
Index entries
78

Codes in G12

  1. G12.0
    Infantile spinal muscular atrophy, type I [Werdnig-Hoffman]
    BillableCC190
  2. G12.1
    Other inherited spinal muscular atrophy
    BillableCC190
    Inclusion terms 6

    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
  3. G12.2
    Motor neuron disease
    Header
  4. G12.20
    Motor neuron disease, unspecified
    BillableCC190
  5. G12.21
    Amyotrophic lateral sclerosis
    BillableCC190
  6. G12.22
    Progressive bulbar palsy
    BillableCC190
  7. G12.23
    Primary lateral sclerosis
    BillableCC190
  8. G12.24
    Familial motor neuron disease
    BillableCC190
  9. G12.25
    Progressive spinal muscle atrophy
    BillableCC190
  10. G12.29
    Other motor neuron disease
    BillableCC190
  11. G12.8
    Other spinal muscular atrophies and related syndromes
    BillableCC190
  12. G12.9
    Spinal muscular atrophy, unspecified
    BillableCC190

CC/MCC: as a secondary diagnosis, unless the principal diagnosis is on the code’s PDX exclusion list (MS-DRG v44 Appendix C; list on the code card).

Sources of each column.

Instructions

Notes that also apply

Chapter 6 instructions (Excludes2 8): printed on the chapter 6 page.

Index entries

  • Werdnig-Hoffmann syndrome (muscular atrophy) → G12.0
  • Fazio-Londe disease or syndrome → G12.1
  • Kugelberg-Welander disease → G12.1
  • Duchenne-Aran muscular atrophy → G12.21
  • Labioglossal paralysis → G12.29
  • Cruveilhier's atrophy or disease → G12.8
  • Atrophy, atrophic (of)Werdnig-Hoffmann → G12.0
  • Disease, diseasedWerdnig-Hoffmann → G12.0
  • SyndromeHoffmann-Werdnig → G12.0
  • SyndromeWerdnig-Hoffman → G12.0
  • Disease, diseasedmotor neuron (bulbar) (mixed type) (spinal) → G12.20
  • Amyotrophia, amyotrophy, amyotrophiclateral sclerosis → G12.21
  • Atrophy, atrophic (of)Duchenne-Aran → G12.21
  • Paralysis, paralytic (complete) (incomplete)amyotrophic → G12.21
  • Sclerosis, scleroticamyotrophic (lateral) → G12.21
  • Sclerosis, scleroticlateral (amyotrophic) (descending) (spinal) → G12.21
  • Atrophy, atrophic (of)palsy, diffuse (progressive) → G12.22
  • Creepingpalsy or paralysis → G12.22
  • Palsyatrophic diffuse (progressive) → G12.22
  • Palsybulbar (progressive) (chronic) → G12.22
  • Palsycreeping → G12.22
  • Paralysis, paralytic (complete) (incomplete)bulbar (chronic) (progressive) → G12.22
  • Paralysis, paralytic (complete) (incomplete)creeping → G12.22
  • Paralysis, paralytic (complete) (incomplete)progressive (atrophic) (bulbar) (spinal) → G12.22
  • Polioencephalitis (acute) (bulbar)inferior → G12.22
  • Syndromebulbar (progressive) → G12.22
  • Paralysis, paralytic (complete) (incomplete)lateral → G12.23
  • Sclerosis, scleroticprimary, lateral → G12.23
  • Amyotrophia, amyotrophy, amyotrophicspinal progressive → G12.25
  • Degeneration, degenerativeanterior cornua, spinal cord → G12.29
  • Palsypseudobulbar NEC → G12.29
  • Palsywasting → G12.29
  • Paralysis, paralytic (complete) (incomplete)association → G12.29
  • Paralysis, paralytic (complete) (incomplete)descending (spinal) NEC → G12.29
  • Paralysis, paralytic (complete) (incomplete)labioglossal (laryngeal) (pharyngeal) → G12.29
  • Paralysis, paralytic (complete) (incomplete)pseudobulbar → G12.29
  • Paralysis, paralytic (complete) (incomplete)wasting → G12.29
  • Atrophy, atrophic (of)muscle, muscular (diffuse) (general) (idiopathic) (primary)infantile spinal → G12.0
  • Palsybulbar (progressive) (chronic)of childhood (Fazio-Londe) → G12.1
  • Atrophy, atrophic (of)spinal (acute) (cord)paralysis → G12.20

38 more, longer entries are not listed; the search box finds them by word.

NCHS Alphabetic Index. Index first, then the Tabular List.

Hierarchy