External constriction of part of breast, left breast, subs

This code indicates an external force or object is causing compression or narrowing of a portion of the left breast. This constriction is not a primary injury but rather a complication or ongoing issue from a previous encounter. It implies the patient is receiving follow-up care for this specific condition.

Apply this code when documenting a patient's return visit for management of an external constriction affecting the left breast, such as from a poorly fitting bra, tight clothing, or a medical device. This is appropriate for subsequent evaluations, treatment, or monitoring of the constriction's effects.

• Ensure the documentation clearly specifies "left breast" and indicates a follow-up encounter.
• Pair with an external cause code (V00-Y99) to describe the mechanism of constriction, if known and applicable.
• Do not use for initial encounters; look for the corresponding initial encounter code.