Corros unsp deg mult site of r shldr/up lmb,ex wrs/hnd, subs

This code signifies a chemical burn of an unknown severity affecting multiple areas of the patient's right shoulder and upper arm, excluding the wrist and hand. The injury is being treated in a follow-up encounter, indicating ongoing care after the initial presentation.

Apply this code when a patient presents for subsequent treatment of a chemical burn to the right shoulder and/or upper arm (e.g., debridement, wound care, physical therapy) where the specific degree of the burn was not documented or is unknown. This code is appropriate for any encounter after the initial treatment of the corrosion.

• Ensure documentation clearly indicates a chemical burn (corrosion) rather than a thermal burn.
• Verify that the encounter is for follow-up care, not the initial treatment, to justify the "D" seventh character.
• Confirm the affected body part is the right shoulder and/or upper limb, excluding the wrist and hand.