2026 ICD-10-CM Diagnosis Code A54.82Gonococcal brain abscess

ICD-10-CM Codes›A00–B99›A50-A64›A54

ICD-10-CM A54.82
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

A54.82 is a billable ICD-10-CM diagnosis code for gonococcal brain abscess. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 867 through 869. Coders also document this condition as gonococcal abscess of brain. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under CNS abscess and Sexually transmitted infections (excluding HIV and hepatitis).

Code Identity

ICD-10-CM Code
A54.82
Billable Status
Yes — Valid for Submission
Code Describes
Gonococcal brain abscess
Short Description
Gonococcal brain abscess
Same as the full description in the CMS dataset.
Parent Code
A54.8
Other gonococcal infections

Code Classification

ChapterA00–B99Certain infectious and parasitic diseases
SectionA50-A64Infections with a predominantly sexual mode of transmission
CategoryA54Gonococcal infection
This CodeA54.82Gonococcal brain abscess

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Gonococcal abscess of brain

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.

    • Abscess(connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic)
      • brain (any part) (cystic) (otogenic)
        • gonococcal

Clinical ClassificationClinical

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

CCSR NVS014
CNS abscess
Default principal diagnosis: inpatient No · outpatient No
CCSR INF010
Sexually transmitted infections (excluding HIV and hepatitis)
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Abscess

An abscess is a pocket of pus. You can get an abscess almost anywhere in your body. When an area of your body becomes infected, your body's immune system tries to fight the infection. White blood cells go to the infected area, collect within the damaged tissue, and cause inflammation. During this process, pus forms.

Read the full article at MedlinePlus

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

Convert A54.82 to ICD-9-CMHistory

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

ICD-9-CM
098.89 Gonococcal inf site 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 A54.82Overview

Is A54.82 (Other gonococcal infections) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report gonococcal brain abscess on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does A54.82 group to?

When gonococcal brain abscess is the principal diagnosis on an inpatient stay, it groups to MS-DRG 867, 868, 869, with relative weights from 0.7297 to 2.0932 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of A54.82?

Under the General Equivalence Mappings, gonococcal brain abscess converts to ICD-9-CM 098.89 (gonococcal inf site 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.