ICD-10 A17.81
Billable / Specific MCCTuberculoma of brain and spinal cord
About ICD-10-CM A17.81
ICD-10-CM code A17.81 represents Tuberculoma of brain and spinal cord. This is a billable/specific code in the Infectious and Parasitic Diseases chapter (block A17). The 2026 edition of ICD-10-CM A17.81 became effective on October 1, 2025.
Coding Tips for A17.81
Specialist guidance from the PayerReady Medical Coding Team. Specificity warnings, HCC capture rules, sequencing notes.
A17.81 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.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under A17.81. Per CMS ICD-10-CM Tabular 2026.
- Tuberculous abscess of brain and spinal cord
Inpatient DRG Impact, MCC
codes Tuberculoma of brain and spinal cord. As a Major Complication/Comorbidity (MCC), this can shift the DRG assignment to a higher-weighted category, substantial reimbursement impact.
Medicare LCD Coverage for A17.81
Local Coverage Determinations (LCDs) from CMS MACs that list A17.81 as a covered diagnosis.
Showing top 10 of 64 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing A17.81.
1 Cigna
5 Medicare
CPT Codes Commonly Billed with A17.81
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 82306 CMS LCD: Billing and Coding: Vitamin D; 25 hydroxy, includes fraction(s), if performed CMS LCD
- 82379 CMS LCD: Billing and Coding: Assays for Vitamins and Metabolic Function CMS LCD
- 86352 CMS LCD: Billing and Coding: Assays for Vitamins and Metabolic Function CMS LCD
- 82652 CMS LCD: Billing and Coding: Assays for Vitamins and Metabolic Function CMS LCD
- 84207 CMS LCD: Billing and Coding: Assays for Vitamins and Metabolic Function CMS LCD
- 85385 CMS LCD: Billing and Coding: Assays for Vitamins and Metabolic Function CMS LCD
- 82746 CMS LCD: Billing and Coding: Assays for Vitamins and Metabolic Function CMS LCD
- 82607 CMS LCD: Billing and Coding: Assays for Vitamins and Metabolic Function CMS LCD
- 70491 CMS LCD: Billing and Coding: MRI and CT Scans of the Head and Neck CMS LCD
- 70487 CMS LCD: Billing and Coding: MRI and CT Scans of the Head and Neck CMS LCD
Convert A17.81 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 |
|---|---|---|
| A17.81 | 01320 | 10000 |
| A17.81 | 01330 | 10000 |
| A17.81 | 01340 | 10000 |
| A17.81 | 01350 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To A17.81
Other codes in section A15-A19 (Tuberculosis).
ICD-10 A17.81, Billing FAQ
Is ICD-10 code A17.81 billable? +
Yes, A17.81 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What other names or terms map to A17.81? +
ICD-10 A17.81 includes: Tuberculous abscess of brain and spinal cord.
Is A17.81 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 A17.81? +
Procedures frequently paired with A17.81 include: 82306, 82379, 86352, 82652, 84207.
What ICD-9 codes does A17.81 map to? +
Per CMS GEMs, A17.81 maps to ICD-9 codes: 01320, 01330, 01340, 01350. 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 June 1, 2026.
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