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

A54.82 is a billable ICD-10-CM diagnosis code for gonococcal brain abscess. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 867 through 869. As a secondary diagnosis, it counts as a complication or comorbidity (CC) and moves an inpatient stay to a higher severity level within its MS-DRG family. It does not count, however, when the principal diagnosis is one of 151 closely related codes. 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
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

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to A54.82: its own notes plus those printed at block A50-A64 and Chapter 1. A note printed at a category, block or chapter applies to every code under it.

Includes

Further defines, or gives examples of, the content of the category.

From Chapter 1 (A00-B99) Certain infectious and parasitic diseases applies to 1,068 codes
  • diseases generally recognized as communicable or transmissible

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

From Block A50-A64 Infections with a predominantly sexual mode of transmission applies to 142 codes
  • nonspecific and nongonococcal urethritis (N34.1)
  • Reiter's disease (M02.3-)

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 Block A50-A64 Infections with a predominantly sexual mode of transmission applies to 142 codes
  • human immunodeficiency virus [HIV] disease (B20)
From Chapter 1 (A00-B99) Certain infectious and parasitic diseases applies to 1,068 codes
  • carrier or suspected carrier of infectious disease (Z22.-)
  • certain localized infections - see body system-related chapters
  • infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
  • infectious and parasitic diseases specific to the perinatal period (P35-P39)
  • influenza and other acute respiratory infections (J00-J22)

Use Additional Code

Add a second code, after this one, to fully describe the condition.

From Chapter 1 (A00-B99) Certain infectious and parasitic diseases applies to 1,068 codes
  • code to identify resistance to antimicrobial drugs (Z16.-)

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

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name A54.82, its category, or a range that includes it.

Applicable To 1

These notes mention A54.82.

  • O98.2 Gonorrhea complicating pregnancy, childbirth and the puerperium
    Conditions in A54.- names A54.-, which includes this code

Excludes1 1

These codes carry an Excludes1 note naming A54.82: they are not reported together with it, unless the two conditions are unrelated.

  • G07 Intracranial and intraspinal abscess and granuloma in diseases classified elsewhere
    gonococcal (A54.82)

Excludes2 1

These codes carry an Excludes2 note naming A54.82: its condition is not part of those codes, and both may be reported when the patient has both.

  • Block P35-P39 Infections specific to the perinatal period
    congenital gonococcal infection (A54.-) names A54.-, which includes this code

Index to Diseases and InjuriesGuidance

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

Clinical InformationClinical

  • Gonococcal Infection

    an infection that is caused by gonococcus.

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 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About A54.82Overview

What is the ICD-10 code for gonococcal brain abscess?

The ICD-10-CM code for gonococcal brain abscess is A54.82 (sometimes written as A5482). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

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, 2026 through September 30, 2027.

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, 869, 868, with relative weights from 0.6784 to 2.1855 depending on complications. Higher weights mean higher Medicare reimbursement.

Is A54.82 a CC or MCC?

CMS lists A54.82 as a CC (complication or comorbidity) for FY 2027. Reported as a secondary diagnosis, it moves the inpatient stay to a higher-weighted DRG within its severity family. It does not count when the principal diagnosis is one of the 151 closely related codes in its exclusion list.

Can A54.82 be reported with N34.1?

Not as a rule. The Excludes1 note at block A50-A64, which applies to A54.82, lists "nonspecific and nongonococcal urethritis (N34.1)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).