Abrasion, left knee, sequela

This code signifies a superficial injury to the left knee, specifically an abrasion, that has resulted in a lasting complication or condition. It indicates that the initial abrasion has healed, but its effects, such as scarring, chronic pain, or altered sensation, are still present and require ongoing management.

Use this code when documenting a patient presenting with a current problem or condition that is a direct consequence of a previously sustained abrasion to their left knee. This applies to follow-up visits where the sequela of the original injury is being treated, rather than the acute injury itself.

• Always use this code as a secondary diagnosis, following the code for the specific sequela (e.g., L90.5 for scar conditions).
• Ensure documentation clearly links the current condition to the prior left knee abrasion.
• Do not use for acute abrasions; refer to the acute injury codes for initial encounters.