Blister (nonthermal) of breast, unsp breast, init encntr

This code signifies a non-burn related blister formation on the breast tissue. It indicates the blister's exact location on the breast is not specified, and this is the first time the patient is being treated for this particular condition.

Use this code when documenting a patient presenting with a blister on the breast that is not due to heat, chemicals, or radiation, and the medical record does not specify which breast (left or right) is affected. This code is appropriate for the initial evaluation and treatment of such a lesion.

• Ensure the documentation explicitly states the blister is nonthermal and does not specify a laterality.
• The "A" at the end indicates an initial encounter; use subsequent encounter codes for follow-up care.
• If the cause of the blister is known (e.g., friction, allergic reaction), consider coding that etiology as a secondary diagnosis.