2026 ICD-10-CM Diagnosis Code G96.89Other specified disorders of central nervous system

ICD-10-CM Codes›G00–G99›G89-G99›G96

ICD-10-CM G96.89
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

G96.89 is a billable ICD-10-CM diagnosis code for other specified disorders of central nervous system. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other nervous system disorders (neither hereditary nor degenerative).

Code Identity

ICD-10-CM Code
G96.89
Billable Status
Yes — Valid for Submission
Code Describes
Other specified disorders of central nervous system
Short Description
Other specified disorders of central nervous system
Same as the full description in the CMS dataset.
Parent Code
G96.8
Other specified disorders of central nervous system

Code Classification

ChapterG00–G99Diseases of the nervous system
SectionG89-G99Other disorders of the nervous system
CategoryG96Other disorders of central nervous system
This CodeG96.89Other specified disorders of central nervous system

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Abnormal exchange of solutes of cerebrospinal fluid
  • Absence of cerebrospinal fluid formation
  • Acquired ataxia
  • Acute seizure due to infection of central nervous system
  • Amebic infection of central nervous system
  • Ataxia due to chronic infection of central nervous system
  • Bacterial infection of central nervous system
  • Central nervous system calcification, deafness, tubular acidosis, anemia syndrome
  • Central nervous system depression
  • Central nervous system disorder of water regulation
  • Cerebrospinal fluid flow absent
  • Cerebrospinal fluid circulation disorder
  • Cerebrospinal fluid pressure finding
  • Chronic infectious disease of central nervous system
  • Cryptococcus infection of the central nervous system
  • Cyst of central nervous system
  • Decreased cerebrospinal fluid formation
  • Dementia due to neurofilament inclusion body disease
  • Disseminated paracoccidioidomycosis
  • Drug-induced central nervous system depression
  • Ependymal cyst
  • Epilepsy due to infectious disease of central nervous system
  • Epilepsy due to neonatal central nervous system infection
  • Escherichia coli infection of the central nervous system
  • Fungal infection of central nervous system
  • Haemophilus infection of the central nervous system
  • Hemorrhage into epidural space of spine
  • Hereditary acanthocytosis
  • Histoplasma infection of central nervous system
  • Infection causing abscess of central nervous system
  • Infection causing cyst of central nervous system
  • Infection causing spinal epidural cyst
  • Infection of central nervous system caused by Paracoccidioides brasiliensis
  • Infectious disease of central nervous system
  • Inflammatory disease of the central nervous system
  • Leptospira infection of the central nervous system
  • Loculation syndrome
  • McLeod neuroacanthocytosis syndrome
  • Neuraxial hematoma
  • Neuroglial cyst
  • Parasitic infection of central nervous system
  • PRUNE1-related neurological syndrome
  • Raised cerebrospinal fluid pressure
  • Seizures complicating infection
  • Situation-related seizures
  • Spastic syndrome
  • Spinal ataxia
  • Spinal epidural cyst caused by parasite
  • Spinal epidural hematoma
  • Spinopontine degeneration
  • Streptococcus infection of the central nervous system
  • Superficial siderosis of central nervous system

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Cyst(colloid) (mucous) (simple) (retention)
      • nervous system NEC
    • Deficiency, deficient
      • central nervous system
    • Disease, diseased
      • nervous system
        • central
          • specified NEC
    • Disorder(of)
      • nervous system
        • central
          • specified NEC
    • Trophoneurosis NEC

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR NVS020
Other nervous system disorders (neither hereditary nor degenerative)
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Ependymal Cyst

    a fluid filled sac lined by ependymal cells.

  • Subependymal Pseudocyst|Germinolytic Cyst|Subependymal Cyst

    cerebral periventricular cyst located on the floor of the lateral cerebral ventricle, most commonly in the caudothalamic groove, and results from regression of the germinal matrix or as a sequela of a prior subependymal hemorrhage or germinal matrix infarct.

Code History & ChangesHistory

Replacement G96.89 replaces the following previously assigned code(s):

  • G96.8 - Other specified disorders of central nervous system
FY 2021AddedAdded to the ICD-10-CM code setEffective October 1, 2020.
FY 2022–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About G96.89Overview

Is G96.89 (Other specified disorders of central nervous system) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report other specified disorders of central nervous system on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.