G93.89

Other specified disorders of brain

Billable FY2026 2025-10-01 → 2026-09-30

Exclusions 8 never code together

Excludes2

certain conditions originating in the perinatal period (P04-P96)P04-P96
certain infectious and parasitic diseases (A00-B99)A00-B99
complications of pregnancy, childbirth and the puerperium (O00-O9A)O00-O9A
congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)Q00-Q99
endocrine, nutritional and metabolic diseases (E00-E88)E00-E88
injury, poisoning and certain other consequences of external causes (S00-T88)S00-T88
neoplasms (C00-D49)C00-D49
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)R00-R94

Excludes2 — not included here, but the patient may have both. Code both when documented.

Instructional notes 1

Inclusion terms

Index entries leading here 26

Deformity Q89.9
- brain (congenital) Q04.9
  - acquired G93.89
- cerebral, acquired G93.89
Automatism G93.89
Cicatrix (adherent) (contracted) (painful) (vicious) L90.5
- brain G93.89
Congestion, congestive
- brain G93.89
Stricture — see also Stenosis
- brain G93.89
Stenosis, stenotic (cicatricial) — see also Stricture
- brain G93.89
Hypertrophy, hypertrophic
- brain G93.89
Hardening
- brain G93.89
Disease, diseased — see also Syndrome
- brain G93.9
  - specified NEC G93.89
- medullary center (idiopathic) (respiratory) G93.89
Siderosis (lung) J63.4
- brain G93.89
Induration, indurated
- brain G93.89
Fistula (cutaneous) L98.8
- brain G93.89
Softening
- brain (necrotic) (progressive) G93.89
Calcification
- choroid plexus G93.89
- cerebral (cortex) G93.89
Failure, failed
- respiration, respiratory J96.90
  - center G93.89
Paralysis, paralytic (complete) (incomplete) G83.9
- respiratory (muscle) (system) (tract) R06.81
  - center NEC G93.89
Fungus, fungous
- cerebral G93.89
Dysfunction
- cerebral G93.89
Syndrome — see also Disease
- Clerambault's automatism G93.89
- midbrain NEC G93.89
- pontine NEC G93.89
- tegmental G93.89
Depression (acute) (mental) F32.A
- medullary G93.89
- respiratory center G93.89
Encephalopathy (acute) G93.40
- postradiation G93.89
Ependymopathy G93.89
Gliosis (cerebral) G93.89
Pneumatocele (lung) J98.4
- intracranial G93.89
Lesion (s) (nontraumatic)
- motor cortex NEC G93.89
Pneumocephalus G93.89

Alongside this code 2 same parent — G93.8

Additional references

AHA Coding Clinic® Licence required

Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.

Maps to no condition category in any loaded model.

Presence is a property of the code. Untick a model to hide it everywhere.

Present FY2024–FY2027.