Corrosion of first degree of back of left hand, subs encntr

This code signifies a superficial chemical burn affecting the back of the left hand, characterized by redness and mild pain without blistering or skin breakage. It indicates that the patient is receiving follow-up care for an injury that occurred previously.

Use this code for a patient presenting for a scheduled re-evaluation, wound check, or dressing change for a first-degree chemical burn on the dorsal aspect of their left hand. This applies when the initial injury has already been treated and the current encounter is for ongoing management.

• Ensure documentation clearly specifies the back of the left hand and the first degree of corrosion.
• The "D" seventh character is crucial for indicating a subsequent encounter; do not use for initial treatment or sequelae.
• Always review the medical record to confirm the cause of the corrosion (e.g., acid, alkali) and code it as an external cause if documented.