2026 ICD-10-CM Diagnosis Code G07Intracranial and intraspinal abscess and granuloma in diseases classified elsewhere
ICD-10-CM Codes›G00–G99›G00-G09›G07
- Billable — Valid for Submission
- MCC — Major Complication or Comorbidity
- Not Chronic
G07 is a billable ICD-10-CM diagnosis code for intracranial and intraspinal abscess and granuloma in diseases classified elsewhere. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 23 through 24, 94 through 96, 791, 793. As a secondary diagnosis, it counts as a major complication or comorbidity (MCC) and places an inpatient stay in the highest severity level of its MS-DRG family. It does not count, however, when the principal diagnosis is one of 72 closely related codes. The code is a manifestation code that cannot be reported as the principal diagnosis. Coders also document this condition as granuloma of brain caused by Schistosoma. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under CNS abscess.
Code Identity
Code Classification
Code EditsBilling
Medicare Code Editor checks that affect claim validity for G07.
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Granuloma of brain caused by Schistosoma
- Granuloma of brain caused by Schistosoma haematobium
- Granuloma of brain caused by Schistosoma japonicum
- Granuloma of brain caused by Schistosoma mansoni
- Infection causing granuloma of central nervous system
- Otogenic intracranial abscess
- Schistosoma haematobium infection
- Schistosoma japonicum infection
- Schistosoma mansoni infection
- Schistosomal granuloma of central nervous system
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Code First
- underlying disease, such as:
- schistosomiasis granuloma of brain B65
Type 1 Excludes
- abscess of brain:
- amebic A06.6
- chromomycotic B43.1
- gonococcal A54.82
- tuberculous A17.81
- tuberculoma of meninges A17.1
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists, there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation.
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Schistosoma Japonicum Infection
an infection that is caused by schistosoma japonicum.Schistosoma Mansoni Infection
an infection that is caused by schistosoma mansoni.
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
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Convert G07 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About G07Overview
Is G07 a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report intracranial and intraspinal abscess and granuloma in diseases classified elsewhere on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does G07 group to?
On inpatient claims, intracranial and intraspinal abscess and granuloma in diseases classified elsewhere maps to MS-DRG 23, 24, 94, 95, 96, 791, 793, with relative weights from 2.5792 to 5.7303 depending on complications. Higher weights mean higher Medicare reimbursement.
Is G07 a CC or MCC?
CMS lists G07 as an MCC (major complication or comorbidity) for FY 2026. Reported as a secondary diagnosis, it places the inpatient stay in the highest-weighted DRG of its severity family. It does not count when the principal diagnosis is one of the 72 closely related codes in its exclusion list.
Can G07 be a principal diagnosis?
No. This is a manifestation code: intracranial and intraspinal abscess and granuloma in diseases classified elsewhere describes the manifestation of an underlying disease rather than the disease itself, so the underlying condition is sequenced first.
What is the ICD-9 equivalent of G07?
Under the General Equivalence Mappings, intracranial and intraspinal abscess and granuloma in diseases classified elsewhere converts to ICD-9-CM 324.9 (cns abscess NOS). The mapping is approximate, so confirm the match fits the documentation.
