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ICD-10-CM 2027 diagnosis code

G06.0Intracranial abscess and granuloma

✓ Billable / specificMCC — major complication/comorbidity

G06.0 is a valid, billable ICD-10-CM code for intracranial abscess and granuloma. 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 Brain abscess.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About G06.0

G06.0 is the ICD-10-CM diagnosis code for intracranial abscess and granuloma. It belongs to category G06 (intracranial and intraspinal abscess and granuloma), block G00-G09 (inflammatory diseases of the central 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 G06 (intracranial and intraspinal abscess and granuloma), G06.0 is specifically for intracranial abscess and granuloma. Related codes cover intraspinal abscess and granuloma (G06.1) and extradural and subdural abscess, unspecified (G06.2).

Don't report G06.0 together with the conditions in its Excludes1 note: tuberculous intracranial abscess and granuloma (A17.81).

Use an additional code (B95-B97) to identify infectious agent.

As a secondary diagnosis it is an MCC (major complication or comorbidity), which can move an inpatient stay into the highest-paying "with MCC" MS-DRG of its family, unless the principal diagnosis excludes it.

In MS-DRG v44.0, it is part of the grouping logic for DRG 023 (Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis with MCC or Antineoplastic Implant or Epilepsy with Neurostimulator, relative weight 5.7444), DRG 024 (Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis without MCC, relative weight 3.9708), DRG 094 (Bacterial and Tuberculous Infections of Nervous System with MCC, relative weight 3.4124), DRG 095 (Bacterial and Tuberculous Infections of Nervous System with CC, relative weight 2.3492), DRG 096 (Bacterial and Tuberculous Infections of Nervous System without CC/MCC, relative weight 2.3213), DRG 791 (Prematurity with Major Problems, relative weight 4.1075) and 1 more, in MDC 01 (Diseases and Disorders of the Nervous System) and MDC 15 (Newborns and Other Neonates with Conditions Originating in the Perinatal Period), 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 has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Before ICD-10, this condition was coded in ICD-9-CM as 324.0 (intracranial abscess).

Coding notes

Applicable toConditions and synonyms classified to this code
  • Brain [any part] abscess (embolic)
  • Cerebellar abscess (embolic)
  • Cerebral abscess (embolic)
  • Intracranial epidural abscess or granuloma
  • Intracranial extradural abscess or granuloma
  • Intracranial subdural abscess or granuloma
  • Otogenic abscess (embolic)
Excludes1Not coded here — never report together with this code
  • tuberculous intracranial abscess and granuloma (A17.81)

Notes that apply from higher levels

Instructions written at a parent level also apply to G06.0.

› From G06 Intracranial and intraspinal abscess and granuloma
Use additional code
  • code (B95-B97) to identify infectious agent.

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

Alphabetic index entries

18 entries

Terms in the official ICD-10-CM index that lead to G06.0.

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.

MDC 15 · Newborns and Other Neonates with Conditions Originating in the Perinatal Period

MDC 15 · Newborns and Other Neonates with Conditions Originating in the Perinatal Period

ICD-9-CM equivalent

Converter →
  • 324.0Intracranial abscessapproximate

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

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
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about G06.0

Is G06.0 billable?

Yes. G06.0 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can G06.0 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict G06.0 as a principal diagnosis.

Is G06.0 a CC or MCC?

G06.0 is an MCC (major complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.

What DRG does G06.0 group to?

G06.0 is used in the MS-DRG v44.0 logic for MS-DRG 023 (Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis with MCC or Antineoplastic Implant or Epilepsy with Neurostimulator), MS-DRG 024 (Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis without MCC), MS-DRG 094 (Bacterial and Tuberculous Infections of Nervous System with MCC), MS-DRG 095 (Bacterial and Tuberculous Infections of Nervous System with CC), MS-DRG 096 (Bacterial and Tuberculous Infections of Nervous System without CC/MCC), MS-DRG 791 (Prematurity with Major Problems) and 1 more. Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.

What is the ICD-9 code for G06.0?

The CMS General Equivalence Mappings map G06.0 to ICD-9-CM 324.0.