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ICD-10-CM 2027 diagnosis code

G96.89Other specified disorders of central nervous system

✓ Billable / specific

G96.89 is a valid, billable ICD-10-CM code for other specified disorders of central nervous system. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.

Looking up by condition? See ICD-10 code for Trophoneurosis NEC.

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 G96.89

G96.89 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 billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within G96.8, choose G96.89 (Other specified disorders of central nervous system) only when documentation doesn't support a more specific option: intracranial hypotension (G96.81).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 070 (Other Cerebrovascular Disorders with MCC, relative weight 1.6093), DRG 071 (Other Cerebrovascular Disorders with CC, relative weight 1.0177) and DRG 072 (Other Cerebrovascular Disorders without CC/MCC, relative weight 0.7348), in MDC 01 (Diseases and Disorders of the Nervous System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

It was added in FY2021, effective October 1, 2020.

Notes that apply from higher levels

Instructions written at a parent level also apply to G96.89.

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

Alphabetic index entries

5 entries

Terms in the official ICD-10-CM index that lead to G96.89.

MS-DRG v44.0 grouping

All DRGs →

Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2021 (effective 10/1/2020): Added
  • No changes since FY2021.

Common questions about G96.89

Is G96.89 billable?

Yes. G96.89 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can G96.89 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict G96.89 as a principal diagnosis.

Is G96.89 a CC or MCC?

No. G96.89 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does G96.89 group to?

G96.89 is used in the MS-DRG v44.0 logic for MS-DRG 070 (Other Cerebrovascular Disorders with MCC), MS-DRG 071 (Other Cerebrovascular Disorders with CC) and MS-DRG 072 (Other Cerebrovascular Disorders without CC/MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.