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

Corrosion of first degree of unspecified site of unspecified lower limb, except ankle and foot, subsequent encounter

📋Clinical Description

This code describes a superficial chemical burn, specifically a first-degree corrosion, affecting an unspecified area of the lower limb, excluding the ankle and foot. It indicates a mild injury to the skin caused by a corrosive substance, characterized by redness and pain without blistering or skin loss.

🎯When to Use

This code is appropriate for follow-up encounters where a patient is being treated for a first-degree chemical burn on the lower limb (e.g., thigh, calf, knee) that is not the ankle or foot. It signifies ongoing care for the initial injury after the acute phase.

💡Coding Tips

Ensure the documentation specifies a first-degree burn and a corrosive agent as the cause.
Verify the anatomical site is a lower limb, but not the ankle or foot.
Confirm this is a subsequent encounter for the injury; initial encounters would use a different seventh character.

AI-generated reference — verify against official guidelines

Code Hierarchy

▲T24.509Corros first deg of unsp site unsp lower limb, except ank/ft

T24.509D(current)

Crosswalks

V58.89ApproxICD-9

Same Category

T24Burn and corrosion of lower limb, except ankle and foot T24.0Burn of unsp degree of lower limb, except ankle and foot T24.00Burn of unsp degree of unsp site lower limb, except ank/ft T24.001Burn unsp deg of unsp site right lower limb, except ank/ft T24.001A