ICD-10 Code
International Classification of Diseases, 10th Revision
May 28, 2017

See: Tuberculosis of other organs

  ICD-10 Code for Tuberculosis of skin & subcutaneous tissue A18.4

A18.4 is a valid1 ICD 10 diagnosis code.

A18.4 is valid for submission for HIPAA-covered transactions.

Chapter 1 Certain infectious and parasitic diseases (A00-B99)
Section A15-A19 Tuberculosis (A15-A19)
Category A18 Tuberculosis of other organs

• See below for any additional coding requirements that may be necessary.

• Check for any notations, inclusions and/or exclusions that are specific to this ICD 10 code before using

1 No additional coding requirements necessary.
Inclusion Term
  • Erythema induratum, tuberculous
  • Lupus excedens
  • Lupus vulgaris NOS
  • Lupus vulgaris of eyelid
  • Scrofuloderma
  • Tuberculosis of external ear
Excludes2
  • lupus erythematosus (L93.-)
  • lupus NOS (M32.9)
  • systemic (M32.-)
See also ICD 10 code for

Related Terms to “Tuberculosis of skin and subcutaneous tissue”

  • Acnitis(primary) - A18.4
  • Bazin's disease(primary) (tuberculous) - A18.4
  • Cellulitis(diffuse) (phlegmonous) (septic) (suppurative) - L03.90
    • tuberculous(primary) - A18.4
  • Erythema, erythematous(infectional) (inflammation) - L53.9
    • induratum(nontuberculous) - L52
      • tuberculous - A18.4
    • nodosum - L52
      • tuberculous - A18.4
    • tuberculous(primary) - A18.4
  • Gumma(syphilitic) - A52.79
    • scrofulous(tuberculous) - A18.4
    • tuberculous - A18.4
  • Lichen - L28.0
    • scrofulosus(primary) (tuberculous) - A18.4
  • Lichenoides tuberculosis(primary) - A18.4
  • Lupus
    • exedens - A18.4
    • tuberculous - A18.4
      • eyelid - A18.4
    • vulgaris - A18.4
      • eyelid - A18.4
  • ParonychiaSee also Cellulitis, digit
    • tuberculous(primary) - A18.4
  • Scrofulide(primary) (tuberculous) - A18.4
  • Scrofuloderma, scrofulodermia(any site) (primary) - A18.4
  • Scrofulosus lichen(primary) (tuberculous) - A18.4
  • Tarsitis(eyelid) - H01.8
    • tuberculous - A18.4
  • Tuberculid, tuberculide(indurating, subcutaneous) (lichenoid) (miliary) (papulonecrotic) (primary) (skin) - A18.4
  • Tuberculosis, tubercular, tuberculous(calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (degeneration) (fibrocaseous) (fistula) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative) - A15.9
    • abscess(respiratory) - A15.9
      • skin(primary) - A18.4
    • cellulitis(primary) - A18.4
    • colliquativa(primary) - A18.4
    • cutis(colliquativa) (primary) - A18.4
    • ear(inner) (middle) - A18.6
      • external(primary) - A18.4
      • skin(primary) - A18.4
    • erythema(induratum) (nodosum) (primary) - A18.4
    • eyelid(primary) (lupus) - A18.4
    • indurativa(primary) - A18.4
    • lichenoides(primary) - A18.4
    • lupus vulgaris - A18.4
    • papulonecrotic(a) (primary) - A18.4
    • paronychia(primary) - A18.4
    • skin(any site) (primary) - A18.4
    • subcutaneous tissue(cellular) (primary) - A18.4
    • subcutis(primary) - A18.4
    • tarsitis - A18.4
    • ulcer(skin) (primary) - A18.4
    • verruca, verrucosa(cutis) (primary) - A18.4
  • Ulcer, ulcerated, ulcerating, ulceration, ulcerative
    • skin(atrophic) (chronic) (neurogenic) (non-healing) (perforating) (pyogenic) (trophic) (tropical) - L98.499
      • tuberculous(primary) - A18.4
  • UlcusSee also Ulcer
    • cutis tuberculosum - A18.4
  • Verruca(due to HPV) (filiformis) (simplex) (viral) (vulgaris) - B07.9
    • necrogenica(primary) (tuberculosa) - A18.4
    • tuberculosa(primary) - A18.4
  • Wart(due to HPV) (filiform) (infectious) (viral) - B07.9
    • prosector(tuberculous) - A18.4
    • tuberculous - A18.4
See the 2017 ICD-10-CM Coding Guidelines.

When ICD 10 was implemented on October 1, 2015, it did not affect physicians', outpatient facilities', and hospital outpatient departments' use of CPT codes on Medicare Fee-For-Service claims. Providers should continue to use CPT codes to report these services.