ICD-10 G07
Billable / Specific MCCIntracranial and intraspinal abscess and granuloma in diseases classified elsewhere
About ICD-10-CM G07
ICD-10-CM code G07 represents Intracranial and intraspinal abscess and granuloma in diseases classified elsewhere. This is a billable/specific code in the Nervous System chapter (block G07). The 2026 edition of ICD-10-CM G07 became effective on October 1, 2025.
Coding Tips for G07
Specialist guidance from the PayerReady Medical Coding Team. Specificity warnings, HCC capture rules, sequencing notes.
G07 is designated MCC for MS-DRG grouping. On inpatient claims, this code can shift the DRG to the with-MCC variant when documented as a present-on-admission secondary diagnosis. Hospital CDI programs flag MCC opportunities during chart review. Failure to capture this code may leave 30 to 80 percent of the inpatient stay revenue unrealized.
Type 1 Excludes
Pure excludes, these codes can never be coded together with G07. The conditions are mutually exclusive (e.g., congenital vs acquired forms).
- abscess of brain:
- amebic (A06.6)
- chromomycotic (B43.1)
- gonococcal (A54.82)
- tuberculous (A17.81)
- tuberculoma of meninges (A17.1)
Coding Notes
Code First
- underlying disease, such as:
- schistosomiasis granuloma of brain (B65.-)
Inpatient DRG Impact, MCC
codes Intracranial and intraspinal abscess and granuloma in diseases classified elsewhere. As a Major Complication/Comorbidity (MCC), this can shift the DRG assignment to a higher-weighted category, substantial reimbursement impact.
Medicare LCD Coverage for G07
Local Coverage Determinations (LCDs) from CMS MACs that list G07 as a covered diagnosis.
Showing top 10 of 38 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing G07.
3 Medicare
CPT Codes Commonly Billed with G07
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 22630 CMS LCD: Billing and Coding: Lumbar Spinal Fusion CMS LCD
- 22533 CMS LCD: Billing and Coding: Lumbar Spinal Fusion CMS LCD
- 22612 CMS LCD: Billing and Coding: Lumbar Spinal Fusion CMS LCD
- 22558 CMS LCD: Billing and Coding: Lumbar Spinal Fusion CMS LCD
- 22633 CMS LCD: Billing and Coding: Lumbar Spinal Fusion CMS LCD
Convert G07 to ICD-9-CM
Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.
| ICD-10 | ICD-9 | Mapping Flags |
|---|---|---|
| G07 | 3249 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To G07
Other codes in section G00-G09 (Inflammatory diseases of the central nervous system).
ICD-10 G07, Billing FAQ
Is ICD-10 code G07 billable? +
Yes, G07 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What codes are Type 1 Excludes for G07? +
Type 1 Excludes (never code together with G07): abscess of brain:; amebic (A06.6); chromomycotic (B43.1)
Is G07 a CC or MCC for inpatient DRG? +
Yes, this code is designated as MCC. Documenting as a secondary diagnosis on inpatient claims can shift the DRG to a higher-weighted category.
What CPT codes are commonly billed with G07? +
Procedures frequently paired with G07 include: 22630, 22533, 22612, 22558, 22633.
What ICD-9 codes does G07 map to? +
Per CMS GEMs, G07 maps to ICD-9 codes: 3249. Useful for legacy data review and historical claim analysis.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on July 16, 2026.
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