Corros 3rd deg mu right fingers (nail), inc thumb, subs

This code signifies a severe chemical burn affecting multiple fingers, including the thumb, on the patient's right hand. The corrosion has penetrated all layers of the skin, indicating full-thickness tissue destruction. This specific code is used for follow-up care after the initial treatment of such an injury.

Apply this code for subsequent encounters when a patient is receiving ongoing treatment, wound care, or rehabilitation for third-degree chemical burns to multiple right fingers and thumb. This includes situations like dressing changes, debridement, or physical therapy sessions after the initial acute phase. Do not use for the initial treatment of the burn.

• Ensure the documentation clearly specifies "multiple" right fingers, including the thumb, and a third-degree corrosion.
• Verify that the encounter is for follow-up care, indicated by the "D" seventh character.
• Confirm the injury is due to corrosion (chemical burn), not a thermal burn, as different codes apply.