A18.0Tuberculosis of bones and joints

A18.0 is the ICD-10-CM diagnosis code for tuberculosis of bones and joints. It belongs to category A18 (tuberculosis of other organs), block A15-A19 (tuberculosis) and chapter 1 (certain infectious and parasitic diseases). It is a header code, so it can't be reported by itself; one of its 4 subcodes must be used instead.

Within A18 (tuberculosis of other organs), A18.0 is specifically for tuberculosis of bones and joints. Related codes cover tuberculosis of genitourinary system (A18.1), tuberculous peripheral lymphadenopathy (A18.2), tuberculosis of intestines, peritoneum and mesenteric glands (A18.3), tuberculosis of skin and subcutaneous tissue (A18.4), tuberculosis of eye (A18.5), tuberculosis of (inner) (middle) ear (A18.6), tuberculosis of adrenal glands (A18.7) and tuberculosis of other specified organs (A18.8).

To report this condition, pick the subcode that matches the documentation: A18.01 (spine), A18.02 (joints), A18.03 (bones) and A18.09 (tuberculosis).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.