A18.7 ICD-10-CM Code: Tuberculosis of adrenal glands
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FY 2026 Apr update / Certain infectious and parasitic diseases (A00-B99) / Tuberculosis (A15-A19)
A18.7
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceTuberculosis of adrenal glands
This is a serious infection caused by tuberculosis bacteria that affects the adrenal glands, which are small glands that sit on top of the kidneys and produce important hormones. This condition is a form of extrapulmonary tuberculosis (TB occurring outside the lungs) and can lead to adrenal insufficiency if not treated.
CMS-HCC V28
N/A—
Not mapped
CMS-HCC V24
N/A—
Not mapped
ACA/HHS
N/A—
Not mapped
ESRD/PACE
N/A—
Not mapped
RXHCC
N/A—
Not mapped
Code Book Path
Inclusion Terms
Official- Tuberculous Addison's disease
Excludes 2
OfficialICD-10-CM does not list Excludes 2 notes for A18.7 in this effective period.
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for A18.7 in this effective period.
Excludes 1
OfficialICD-10-CM does not list Excludes 1 notes for A18.7 in this effective period.
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for A18.7 in this effective period.
Use Additional
OfficialICD-10-CM does not list Use Additional Code instructions for A18.7 in this effective period.
Code Also
OfficialICD-10-CM does not list Code Also instructions for A18.7 in this effective period.
Buddy Documentation Tip
Current with CMS: FY2026 ICD-10-CM Apr 1 update (effective Apr 1 – Sep 30, 2026) · CMS-HCC V28, 100% phased in for payment year 2026. FY2027 code set already staged for October 1, 2026. How HCC Buddy stays current →
Is A18.7 an HCC code?
No. A18.7 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
- Code
- A18.7
- Description
- Tuberculosis of adrenal glands
- HCC (V28)
- No CMS-HCC V28 mapping
- RAF
- —
- Billable
- Yes
- Payment year
- 2026
Coder workflow notes
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This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
A18.7 is the ICD-10-CM diagnosis code for tuberculosis of adrenal glands. This is a serious infection caused by tuberculosis bacteria that affects the adrenal glands, which are small glands that sit on top of the kidneys and produce important hormones. This condition is a form of extrapulmonary tuberculosis (TB occurring outside the lungs) and can lead to adrenal insufficiency if not treated. A18.7 sits in the ICD-10-CM chapter for certain infectious and parasitic diseases (a00-b99), within the section covering tuberculosis (a15-a19).
A18.7 is a billable ICD-10-CM code but does not map to a payment HCC under the CMS-HCC V28, V24, ESRD, or RxHCC risk adjustment models. It can be reported on Medicare Advantage encounter data submissions but it does not contribute to a beneficiary's RAF score and therefore does not affect risk-adjusted payments to the plan.
This code should only be used when tuberculosis of the adrenal glands is confirmed through culture, histology, or clinical/radiological evidence; do not use for suspected cases without confirmation.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for A18.7 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •This code should only be used when tuberculosis of the adrenal glands is confirmed through culture, histology, or clinical/radiological evidence; do not use for suspected cases without confirmation
- •Code A18.7 is part of the extrapulmonary TB category; ensure the primary TB site is documented and coded separately if pulmonary TB is also present, as this affects the severity and treatment approach