2026 ICD-10-CM Diagnosis Code G96.12Meningeal adhesions (cerebral) (spinal)

ICD-10-CM Codes›G00–G99›G89-G99›G96

ICD-10-CM G96.12
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

G96.12 is a billable ICD-10-CM diagnosis code for meningeal adhesions (cerebral) (spinal). It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). Coders also document this condition as adhesion of brain meninges. 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
G96.12
Billable Status
Yes — Valid for Submission
Code Describes
Meningeal adhesions (cerebral) (spinal)
Short Description
Meningeal adhesions (cerebral) (spinal)
Same as the full description in the CMS dataset.
Parent Code
G96.1
Disorders of meninges, not elsewhere classified

Code Classification

ChapterG00–G99Diseases of the nervous system
SectionG89-G99Other disorders of the nervous system
CategoryG96Other disorders of central nervous system
This CodeG96.12Meningeal adhesions (cerebral) (spinal)

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Adhesion of brain meninges
  • Adhesion of meninges
  • Adhesion of spinal cord meninges

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.

    • Adhesions, adhesive(postinfective)
      • meninges (cerebral) (spinal)
    • Adhesions, adhesive(postinfective)
      • spinal canal

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

Patient EducationClinical

Brain Diseases

Your brain is the control center of your body. It controls your thoughts, memory, speech, and movement. It regulates the function of many organs. It's part of your nervous system, which also includes your spinal cord and peripheral nerves. The nervous system sends signals between your brain and the rest of the body.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert G96.12 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
349.2 Disorder of meninges NEC
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About G96.12Overview

Is G96.12 (Disorders of meninges, not elsewhere classified) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report meningeal adhesions (cerebral) (spinal) on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What is the ICD-9 equivalent of G96.12?

Under the General Equivalence Mappings, meningeal adhesions (cerebral) (spinal) converts to ICD-9-CM 349.2 (disorder of meninges NEC). The mapping is approximate, so confirm the match fits the documentation.

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.