2027 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 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

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 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 70 through 72. 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 infectious disease of central nervous system
  • Acute symptomatic epileptic seizure due to acute infection of central nervous system
  • Acute symptomatic epileptic seizure due to acute infectious disease
  • 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
  • Hypermyelination 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
  • 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

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to G96.89: its own notes plus those printed at Chapter 6. A note printed at a category, block or chapter applies to every code under it.

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Chapter 6 (G00-G99) Diseases of the nervous system applies to 700 codes
  • 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)

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

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

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 2022–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About G96.89Overview

What is the ICD-10 code for other specified disorders of central nervous system?

The ICD-10-CM code for other specified disorders of central nervous system is G96.89 (sometimes written as G9689). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

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, 2026 through September 30, 2027.

What MS-DRG does G96.89 group to?

When other specified disorders of central nervous system is the principal diagnosis on an inpatient stay, it groups to MS-DRG 72, 70, 71, with relative weights from 0.7344 to 1.6089 depending on complications. Higher weights mean higher Medicare reimbursement.