ICD-10-CM Diagnosis Code (2025)
Official Description for A18.4
Tuberculosis of skin and subcutaneous tissue
Coding Notes & Guidelines for A18.4
Excludes2: Not Included Here
- lupus erythematosus (L93.-)
- systemic lupus erythematosus (M32.-)
Inclusion Terms
- Erythema induratum, tuberculous
- Lupus exedens
- Lupus vulgaris NOS
- Lupus vulgaris of eyelid
- Scrofuloderma
- Tuberculosis of external ear
Parent Code (Less Specific):
About ICD-10-CM Code A18.4 (Tuberculosis of skin and subcutaneous tissue)
ICD-10-CM code A18.4 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM A18.4 became effective on October 1, 2024.
This page provides detailed information about A18.4 - Tuberculosis of skin and subcutaneous tissue. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Tuberculosis of skin and subcutaneous tissue.