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

This code signifies the long-term effects or complications resulting from a chemical burn (corrosion) that affected multiple areas of the patient's left shoulder and upper arm, excluding the wrist and hand. The original burn's severity (degree) is not specified, and this code is used when the acute injury has healed but residual problems persist.

Apply this code for patients presenting with chronic pain, scarring, contractures, limited range of motion, or other lasting sequelae directly attributable to a past chemical burn involving the left shoulder and/or upper arm. This code is appropriate when the initial injury has resolved, and the current encounter addresses these ongoing, late effects.

• Always use an external cause code (V00-Y99) in conjunction with this code to describe the circumstances of the corrosion.
• Ensure documentation clearly links the current condition to a past chemical burn and specifies the left upper limb involvement, excluding wrist/hand.
• This "S" seventh character indicates a sequela, meaning the code is for complications or conditions arising as a direct result of the initial injury, after the acute phase has passed.