ICD-10 · PDGM grouping
G20-G26 — Extrapyramidal and movement disorders
Every ICD-10-CM code in this range and the PDGM clinical group CMS assigns to it, read from the CMS grouper crosswalk v07.2.26.
Codes in range
46
No clinical group
5
A period cannot be grouped from these.
Barred as primary
0
CMS rejects these in the primary position.
Where these codes group
27 of the 46 codes in G20-G26 group to Neuro Rehabilitation, but the range is not uniform — it spreads across 2 clinical groups. A further 5 are assigned no clinical group at all, which means a 30-day period cannot be grouped from them.
Code families in G20-G26
One page per three-character family: every code in it, whether it can lead a claim, its clinical group and comorbidity subgroup.
Every code in G20-G26
Descriptions are CMS’s own, abbreviated as CMS abbreviates them.
| Code | Description | Clinical group | Primary position |
|---|---|---|---|
| G20A1 | Parkinson's dis w/o dyskinesia, w/o mention of fluctuations | B | Can lead a claim |
| G20A2 | Parkinson's disease without dyskinesia, with fluctuations | B | Can lead a claim |
| G20B1 | Parkinson's dis with dyskinesia, w/o mention of fluctuations | B | Can lead a claim |
| G20B2 | Parkinson's disease with dyskinesia, with fluctuations | B | Can lead a claim |
| G20C | Parkinsonism, unspecified | B | Can lead a claim |
| G210 | Malignant neuroleptic syndrome | B | Can lead a claim |
| G2111 | Neuroleptic induced parkinsonism | B | Can lead a claim |
| G2119 | Other drug induced secondary parkinsonism | B | Can lead a claim |
| G212 | Secondary parkinsonism due to other external agents | None | Cannot lead a claim |
| G213 | Postencephalitic parkinsonism | B | Can lead a claim |
| G214 | Vascular parkinsonism | B | Can lead a claim |
| G218 | Other secondary parkinsonism | B | Can lead a claim |
| G219 | Secondary parkinsonism, unspecified | B | Can lead a claim |
| G230 | Hallervorden-Spatz disease | B | Can lead a claim |
| G231 | Progressive supranuclear ophthalmoplegia | B | Can lead a claim |
| G232 | Striatonigral degeneration | B | Can lead a claim |
| G233 | Hypomyelination with atrophy of basal ganglia and cerebellum | B | Can lead a claim |
| G238 | Other specified degenerative diseases of basal ganglia | B | Can lead a claim |
| G239 | Degenerative disease of basal ganglia, unspecified | B | Can lead a claim |
| G2401 | Drug induced subacute dyskinesia | B | Can lead a claim |
| G2402 | Drug induced acute dystonia | B | Can lead a claim |
| G2409 | Other drug induced dystonia | B | Can lead a claim |
| G241 | Genetic torsion dystonia | B | Can lead a claim |
| G242 | Idiopathic nonfamilial dystonia | B | Can lead a claim |
| G243 | Spasmodic torticollis | B | Can lead a claim |
| G244 | Idiopathic orofacial dystonia | B | Can lead a claim |
| G245 | Blepharospasm | B | Can lead a claim |
| G248 | Other dystonia | B | Can lead a claim |
| G249 | Dystonia, unspecified | None | Cannot lead a claim |
| G250 | Essential tremor | A | Can lead a claim |
| G251 | Drug-induced tremor | A | Can lead a claim |
| G252 | Other specified forms of tremor | A | Can lead a claim |
| G253 | Myoclonus | A | Can lead a claim |
| G254 | Drug-induced chorea | A | Can lead a claim |
| G255 | Other chorea | A | Can lead a claim |
| G2561 | Drug induced tics | A | Can lead a claim |
| G2569 | Other tics of organic origin | A | Can lead a claim |
| G2570 | Drug induced movement disorder, unspecified | None | Cannot lead a claim |
| G2571 | Drug induced akathisia | A | Can lead a claim |
| G2579 | Other drug induced movement disorders | A | Can lead a claim |
| G2581 | Restless legs syndrome | A | Can lead a claim |
| G2582 | Stiff-man syndrome | A | Can lead a claim |
| G2583 | Benign shuddering attacks | A | Can lead a claim |
| G2589 | Other specified extrapyramidal and movement disorders | A | Can lead a claim |
| G259 | Extrapyramidal and movement disorder, unspecified | None | Cannot lead a claim |
| G26 | Extrapyramidal and movement disord in diseases classd elswhr | None | Cannot lead a claim |
Source: CMS HH PPS Grouper Software v07.2.26, effective 2026-10-01. This is the crosswalk Medicare runs a claim through. Grouping also depends on admission source, timing, the OASIS functional items and the rest of the diagnosis list.
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