Alphabetic Index FY2027

G25.9

Extrapyramidal and movement disorder, unspecified

FY2027Chapter 6: Diseases of the nervous system/G20–G26 Extrapyramidal and movement disorders

BillableComplete code, valid to report
Care settingsHospital CCIPF Primary · MS-DRG 056–057

G25.9 (also written G259) is a billable ICD-10-CM diagnosis code for extrapyramidal and movement disorder, unspecified. It is part of the FY2027 code set, effective October 1, 2026. It is one of the 16 codes in category G25 (Other extrapyramidal and movement disorders). The Alphabetic Index lists it under 10 entries. Its coding notes include 9 Excludes2 entries.

Excludes2

Not included here. Both codes may be reported if the patient has both conditions.

Inherited from G25 Other extrapyramidal and movement disorders
  • sleep related movement disorders (G47.6-)
Also from chapter/block level (8 notes)
Inherited from Chapter 6 Diseases of the nervous system
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Care settings

How CMS programs treat this code. These are CMS claim edits and list entries, not coverage or eligibility rules.

Hospital CC

Counts as a complication or comorbidity (CC) when reported as a secondary diagnosis on an inpatient claim. It does not count when the principal diagnosis is one of the 95 codes in its exclusion list. Some MS-DRGs also ignore a CC or MCC that defines the DRG.

Source: CMS MS-DRG Definitions Manual v44, effective October 1, 2026, Appendix C

IPF Primary

IPF MS-DRG adjustment. A principal diagnosis of this code groups to one of these MS-DRGs. Which one depends on other facts of the stay, so the factor is a range:

MS-DRGDescriptionFactor
056Degenerative nervous system disorders w MCC1.12
057Degenerative nervous system disorders w/o MCC1.11
A principal diagnosis that groups to none of the 19 designated MS-DRGs gets no MS-DRG adjustment. Otherwise the claim still receives the federal per diem base rate and the other adjustments.

Source: CMS IPF PPS FY 2027 final rule (CMS-1847-F), Addendum A; code lists from the CMS MS-DRG Definitions Manual v44; effective for discharges on or after October 1, 2026

Alphabetic Index terms

Terms the official Alphabetic Index lists for this code. 10 entries