Abrasion, unspecified knee, sequela

This code signifies a superficial injury involving the scraping or rubbing off of the skin's outer layer on an unspecified knee, where the injury itself is no longer acute but is a residual effect or complication of a previous abrasion. It indicates that the original injury has healed, but there are ongoing consequences or late effects.

Use this code when documenting a patient presenting with a long-term complication or sequela directly attributable to a past abrasion of the knee, where the specific knee (right or left) is not documented. This would apply to conditions like chronic scarring, persistent discoloration, or nerve damage resulting from a previously healed abrasion.

• Always attempt to identify the specific knee (right or left) to use a more precise code if possible.
• Ensure the documentation clearly links the current condition to a previous abrasion, not an acute injury.
• This code should be used as a secondary diagnosis when the sequela is the primary reason for the encounter, or as a primary diagnosis if the sequela itself is the focus of treatment.