ICD-10-CM 2027 diagnosis code
A18.1Tuberculosis of genitourinary system
A18.1 is a header code, so it can't be reported by itself. Choose one of the 9 more specific codes beneath it.
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About A18.1
A18.1 is the ICD-10-CM diagnosis code for tuberculosis of genitourinary system. 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 9 subcodes must be used instead.
Within A18 (tuberculosis of other organs), A18.1 is specifically for tuberculosis of genitourinary system. Related codes cover tuberculosis of bones and joints (A18.0), 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: A18.10 (unspecified), A18.11 (ureter), A18.12 (bladder), A18.13 (organs), A18.14 (prostate), A18.15 (organs), A18.16 (cervix), A18.17 (disease) and 1 more.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Specific codes under A18.1
- A18.10Tuberculosis of genitourinary system, unspecifiedBillable
- A18.11Tuberculosis of kidney and ureterBillable
- A18.12Tuberculosis of bladderBillable
- A18.13Tuberculosis of other urinary organsBillable
- A18.14Tuberculosis of prostateBillable
- A18.15Tuberculosis of other male genital organsBillable
- A18.16Tuberculosis of cervixBillable
- A18.17Tuberculous female pelvic inflammatory diseaseBillable
- A18.18Tuberculosis of other female genital organsBillable
Notes that apply from higher levels
Instructions written at a parent level also apply to A18.1.
Broader instructions also apply from A15-A19 Tuberculosis and Chapter 1: Certain infectious and parasitic diseases.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about A18.1
Is A18.1 billable?
- No. A18.1 is a header code. Report one of its more specific subcodes instead.