A18.8 – Tuberculosis of other specified organs
ICD-10-CM 2027 diagnosis code · Tuberculosis
ICD-10-CM code
A18.8
- Code
A18.8(claims format:A188)- Description
- Tuberculosis of other specified organs
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 1. Certain infectious and parasitic diseases (A00-B99)
- Block
- A15-A19 Tuberculosis
- Parent codes
- A18
Billable codes under A18.8
A18.8 is a header code and cannot be used on claims. Choose the most specific code:
- A18.81 – Tuberculosis of thyroid glandBillable
- A18.82 – Tuberculosis of other endocrine glandsBillable
- A18.83 – Tuberculosis of digestive tract organs, not elsewhere classifiedBillable
- A18.84 – Tuberculosis of heartBillable
- A18.85 – Tuberculosis of spleenBillable
- A18.89 – Tuberculosis of other sitesBillable
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
Block A15-A19
Includes:
- infections due to Mycobacterium tuberculosis and Mycobacterium bovis
Excludes1 (not coded here):
- congenital tuberculosis (P37.0)
- nonspecific reaction to test for tuberculosis without active tuberculosis (R76.1-)
- pneumoconiosis associated with tuberculosis, any type in A15 (J65)
- positive PPD (R76.11)
- positive tuberculin skin test without active tuberculosis (R76.11)
- sequelae of tuberculosis (B90.-)
- silicotuberculosis (J65)
Use additional code:
- code, if applicable, for associated cachexia (E88.A)
Related codes in A18
- A18.0 – Tuberculosis of bones and jointsHeader
- A18.1 – Tuberculosis of genitourinary systemHeader
- A18.2 – Tuberculous peripheral lymphadenopathyBillable
- A18.3 – Tuberculosis of intestines, peritoneum and mesenteric glandsHeader
- A18.4 – Tuberculosis of skin and subcutaneous tissueBillable
- A18.5 – Tuberculosis of eyeHeader
- A18.6 – Tuberculosis of (inner) (middle) earBillable
- A18.7 – Tuberculosis of adrenal glandsBillable
Frequently asked questions
What is ICD-10 code A18.8?
A18.8 is the ICD-10-CM code for tuberculosis of other specified organs, in the block A15-A19 (Tuberculosis).
Is A18.8 a billable code?
No. A18.8 is a header code with more specific child codes; report one of the billable codes listed above.
What category does A18.8 belong to?
It belongs to category A18 – Tuberculosis of other organs.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.