ICD-10-CM diagnosis code
A18.2 Tuberculous peripheral lymphadenopathy
- Billable
- Yes, a complete code (FY2026)
- Category
- A18 Tuberculosis of other organs
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Other codes in A18
32 complete codes in this category.
- A18.13Tuberculosis of other urinary organs
- A18.14Tuberculosis of prostate
- A18.15Tuberculosis of other male genital organs
- A18.16Tuberculosis of cervix
- A18.17Tuberculous female pelvic inflammatory disease
- A18.18Tuberculosis of other female genital organs
- A18.2Tuberculous peripheral lymphadenopathy
- A18.31Tuberculous peritonitis
- A18.32Tuberculous enteritis
- A18.39Retroperitoneal tuberculosis
- A18.4Tuberculosis of skin and subcutaneous tissue
- A18.50Tuberculosis of eye, unspecified
Documentation tips
- Make sure the note supports every element of the title, “Tuberculous peripheral lymphadenopathy”: each detail in it should be traceable to the history, examination or assessment.
- Code to the highest specificity the documentation supports. If a detail is missing from the note, add it to the note rather than choosing a less specific code by default.
- Check the Tabular List and official guidelines for instructional notes (“code first”, “use additional code”, Excludes1/Excludes2) that apply to A18.
The international WHO ICD-10 also has A18.2, with its inclusion and exclusion notes; titles and detail can differ from ICD-10-CM.
ICD-10-CM is developed by the National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, and is based on the WHO ICD-10. Codes and titles are reproduced unchanged from the FY2026 code list (effective 1 October 2025). Their use here does not imply endorsement by CDC, HHS or the U.S. Government. Changes effective on or after 1 October 2026 may not be reflected yet; check the current release at cdc.gov or cms.gov before submitting claims.
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