ICD-10-CM 2027 diagnosis code

G96.8Other specified disorders of central nervous system

Not billable — use a more specific code

G96.8 is a header code, so it can't be reported by itself. Choose one of the 2 more specific codes beneath it.

Code last changed in FY2021 (effective October 1, 2020). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About G96.8

G96.8 is the ICD-10-CM diagnosis code for other specified disorders of central nervous system. It belongs to category G96 (other disorders of central nervous system), block G89-G99 (other disorders of the nervous system) and chapter 6 (diseases of the nervous system). It is a header code, so it can't be reported by itself; one of its 2 subcodes must be used instead.

Within G96, choose G96.8 (Other specified disorders of central nervous system) only when documentation doesn't support a more specific option: cerebrospinal fluid leak (G96.0), disorders of meninges, not elsewhere classified (G96.1) and disorder of central nervous system, unspecified (G96.9).

To report this condition, pick the subcode that matches the documentation: G96.81 (hypotension) and G96.89 (system).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015, and changed in FY2021 (expanded into subcodes).

Before ICD-10, this condition was coded in ICD-9-CM as 349.89 (other specified disorders of nervous system).

Specific codes under G96.8

Notes that apply from higher levels

Instructions written at a parent level also apply to G96.8.

Broader instructions also apply from Chapter 6: Diseases of the nervous system.

ICD-9-CM equivalent

Converter →

349.89Other specified disorders of nervous systemapproximate

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027

FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
FY2021 (effective 10/1/2020): Expanded — no longer billable

Common questions about G96.8

Is G96.8 billable?: No. G96.8 is a header code. Report one of its more specific subcodes instead.
What is the ICD-9 code for G96.8?: The CMS General Equivalence Mappings map G96.8 to ICD-9-CM 349.89.