Corros unsp deg mult site of l shldr/up lmb,ex wrs/hnd, init

This code signifies chemical damage of an indeterminate severity affecting multiple areas of the patient's left shoulder and upper arm, excluding the wrist and hand. This injury is due to exposure to a corrosive substance, such as a strong acid or alkali.

Apply this code for the initial treatment of a chemical burn to the left shoulder and upper limb (excluding wrist/hand) where the specific degree of the burn (e.g., first, second, third) has not yet been determined or documented. This is appropriate for the first encounter for this specific injury.

• Ensure documentation clearly specifies "left" side and involvement of multiple sites within the shoulder/upper limb.
• Only use for the initial encounter; subsequent care would require a different 7th character.
• If the specific degree of corrosion is known, a more precise code should be selected.