A18.4 - Tuberculosis of skin and subcutaneous tissue

Code

A18.4 - Tuberculosis of skin and subcutaneous tissue
[Billable]

Includes

  • Erythema induratum, tuberculous
  • Lupus excedens
  • Lupus vulgaris NOS
  • Lupus vulgaris of eyelid
  • Scrofuloderma
  • Tuberculosis of external ear

Not Included Here

  • lupus erythematosus (L93.-)
  • systemic lupus erythematosus (M32.-)

Code Tree

A00-B99 - Certain infectious and parasitic diseases
  • A15-A19 - Tuberculosis
    • A18 - Tuberculosis of other organs
      • A18.0 - Tuberculosis of bones and joints
      • A18.1 - Tuberculosis of genitourinary system
      • A18.2 - Tuberculous peripheral lymphadenopathy
      • A18.3 - Tuberculosis of intestines, peritoneum and mesenteric glands
      • A18.4 - Tuberculosis of skin and subcutaneous tissue
      • A18.5 - Tuberculosis of eye
      • A18.6 - Tuberculosis of (inner) (middle) ear
      • A18.7 - Tuberculosis of adrenal glands
      • A18.8 - Tuberculosis of other specified organs

Map to ⑨

A18.4 converts approximately to one of the following ICD-9-CM codes:
  • 017.00 - Tuberculosis of skin and subcutaneous cellular tissue, unspecified
  • 017.10 - Erythema nodosum with hypersensitivity reaction in tuberculosis, unspecified
A18.4 - Tuberculosis of skin and subcutaneous tissue is a sample topic from the ICD-10-CM.

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ICD-10-CM 2020 Coding Guide™ from Unbound Medicine. Search online 72,000+ ICD-10 codes by number, disease, injury, drug, or keyword. .