Corros 1st deg of unsp site unsp lower limb, ex ank/ft, sqla

This code signifies a healed or residual effect from a first-degree burn (corrosion) on an unspecified part of the lower limb, excluding the ankle and foot. It indicates that the initial injury has resolved, but there are lasting consequences or late effects.

Use this code when documenting a patient presenting with a sequela (e.g., scarring, contracture, chronic pain) directly attributable to a past first-degree corrosion of the lower limb, not involving the ankle or foot, and where the specific site on the limb is not documented. This applies when the acute injury has already been treated and is no longer active.

• Always use this code as a secondary diagnosis, following a code that describes the specific sequela (e.g., scar, chronic pain).
• Ensure documentation clearly states the injury was a "corrosion" (chemical burn) and not a thermal burn.
• Verify that the affected area is indeed the lower limb, excluding the ankle and foot, and that the specific site is unspecified.