CPT 11900
Intralesional injection, up to and including 7 skin lesions
Last reviewed August 2026 · DataLily AI data team
What does CPT 11900 mean?
CPT 11900 reports injection of medication directly into skin lesions, covering up to and including seven lesions. Injections into more than seven lesions are reported with 11901.
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CPT 11900 at a glance
- Code
- 11900
- Code type
- CPT/HCPCS
- Short descriptor
- Inject skin lesions </w 7
- Category
- ASC Surgical
- ASC eligibility
- ASC-eligible (surgical)
- Typical setting
- Ambulatory surgery center (POS 24) or hospital outpatient department (POS 22).
What is CPT code 11900?
CPT 11900 reports injection of medication directly into skin lesions, covering up to and including seven lesions. Injections into more than seven lesions are reported with 11901. Its official short descriptor is "Inject skin lesions </w 7", and in the ASC context it is grouped under ASC Surgical.
Is CPT 11900 eligible in an ambulatory surgery center (ASC)?
CPT 11900 can be performed in a certified ambulatory surgery center.
Where is CPT 11900 typically performed?
Ambulatory surgery center (POS 24) or hospital outpatient department (POS 22).
Which specialties use CPT 11900?
CPT 11900 is most associated with General Surgery, Plastic Surgery.
Reference information about ASC eligibility and typical procedure setting. Codes, descriptors, and ASC-eligibility status change over time. This is a coding reference, not billing, coding, or legal advice. Always verify against current guidance and individual payer policy before scheduling or billing. CPT is a registered trademark of the American Medical Association. Read the DataLily AI data methodology.