S21.012S
ICD-10-CMThis code signifies a past injury to the left breast involving a tear or cut in the skin and underlying tissues, where no foreign object was present at the time of the original injury. The "sequela" indicates that this code is used for conditions that are residual effects or complications arising from that initial laceration, long after the acute phase has passed.
Use this code when documenting and billing for conditions such as scar tissue formation, chronic pain, nerve damage, or cosmetic deformities that are directly attributable to a previously sustained laceration of the left breast without a foreign body. This applies when the patient is presenting for treatment of these long-term effects, not the initial acute injury.
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