G93.89
Other specified disorders of brain
G93.89 (also written G9389) is a billable ICD-10-CM diagnosis code for other specified disorders of brain. It is part of the FY2027 code set, effective October 1, 2026. It is one of the 20 codes in category G93 (Other disorders of brain). The Alphabetic Index lists it under 33 entries. Its coding notes include 8 Excludes2 entries.
Excludes2
Not included here. Both codes may be reported if the patient has both conditions.
Also from chapter/block level (8 notes)
- 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.
Home Health Primary
Accepted as the primary (principal) diagnosis on a home health claim. The Home Health Grouper assigns it to the Neuro Rehabilitation clinical group.
Source: CMS Home Health Grouper Software v07.2.26, effective October 1, 2026Inclusion terms
Conditions classified to this code.
- Postradiation encephalopathy
Alphabetic Index terms
Terms the official Alphabetic Index lists for this code. 33 entries
- Automatism
- Calcification, cerebral (cortex)
- Calcification, choroid plexus
- Cicatrix (adherent) (contracted) (painful) (vicious), brain
- Congestion, congestive, brain
- Deformity, brain (congenital), acquired
- Deformity, cerebral, acquired
- Depression (acute) (mental), medullary
- Depression (acute) (mental), respiratory center
- Disease, diseased, brain, specified NEC
- Disease, diseased, medullary center (idiopathic) (respiratory)
- Dysfunction, cerebral
Show 21 more
- Encephalopathy (acute), postradiation
- Ependymopathy
- Failure, failed, respiration, respiratory, center
- Fistula (cutaneous), brain
- Fungus, fungous, cerebral
- Gliosis (cerebral)
- Hardening, brain
- Hypertrophy, hypertrophic, brain
- Induration, indurated, brain
- Lesion (s) (nontraumatic), motor cortex NEC
- Paralysis, paralytic (complete) (incomplete), respiratory (muscle) (system) (tract), center NEC
- Pneumatocele (lung), intracranial
- Pneumocephalus
- Siderosis (lung), brain
- Softening, brain (necrotic) (progressive)
- Stenosis, stenotic (cicatricial), brain
- Stricture, brain
- Syndrome, Clerambault's automatism
- Syndrome, midbrain NEC
- Syndrome, pontine NEC
- Syndrome, tegmental