A18 ICD-10-CM Code: Tuberculosis of other organs
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Official description
A18Tuberculosis of other organs
ICD-10-CM diagnosis code · United States clinical modification
Where A18 sits
- 1
Chapter 1
Certain infectious and parasitic diseases (A00-B99)
- 2
Section
Tuberculosis (A15-A19)
- 3
Category A18
Tuberculosis of other organs
- 4
Code A18
Tuberculosis of other organs
Codes under A18
A18 is a non-billable category. Choose the child code that best matches the documented diagnosis.
A18.0Tuberculosis of bones and jointsA18.1Tuberculosis of genitourinary systemA18.2Tuberculous peripheral lymphadenopathyA18.3Tuberculosis of intestines, peritoneum and mesenteric glandsA18.4Tuberculosis of skin and subcutaneous tissueA18.5Tuberculosis of eyeA18.6Tuberculosis of (inner) (middle) earA18.7Tuberculosis of adrenal glandsA18.8Tuberculosis of other specified organsNotes for this code
Inclusion terms
No inclusion terms are listed for A18.
Code first
No “code first” instruction is listed for A18.
Use additional code
No “use additional code” instruction is listed for A18.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for A18.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for A18.
Source and release
- Data release
- U.S. ICD-10-CM · FY 2027
- Effective date
- Oct 1, 2026
- Publisher
- Vero Scribe Inc.
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Frequently asked questions
What does ICD-10-CM code A18 mean?
A18 is the FY 2027 U.S. ICD-10-CM code for “Tuberculosis of other organs.”
Is A18 a billable or specific ICD-10-CM code?
No. A18 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.
Where is A18 located in ICD-10-CM?
A18 is listed in Chapter 1, Certain infectious and parasitic diseases (A00-B99), within Tuberculosis (A15-A19) (A15–A19), under category A18, Tuberculosis of other organs.
What coding notes are listed for A18?
No inclusion terms are listed for A18 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.