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

This code signifies chemical damage of an indeterminate severity affecting multiple areas of the shoulder and upper arm, excluding the wrist and hand. The injury is due to corrosive substances, such as strong acids or bases, rather than thermal burns.

Apply this code when a patient presents for follow-up care, healing, or complications related to a chemical burn of unknown degree involving multiple sites of the shoulder and upper limb (excluding wrist and hand). This is appropriate for subsequent encounters after the initial treatment of the corrosion.

• Ensure the documentation clearly specifies chemical corrosion, not a thermal burn.
• Confirm that multiple sites within the shoulder and upper limb (excluding wrist/hand) are affected.
• The "D" seventh character indicates a subsequent encounter for care after the initial treatment.