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

This code describes a first-degree corrosion (chemical burn) affecting the shoulder or any part of the upper limb, excluding the wrist and hand, where the specific location on the shoulder or upper limb is not documented. It indicates that the injury is a sequela, meaning it is a residual effect or complication of an acute corrosion that occurred in the past.

Use this code when documenting a long-term or late effect resulting from a first-degree chemical burn to the shoulder or upper arm/forearm, but not the wrist or hand. This applies when the original acute injury has healed, but the patient presents with ongoing issues directly attributable to that past corrosion, and the precise site within the shoulder/upper limb is unspecified.

• Requires an external cause code (e.g., X-codes) to identify the chemical agent and circumstances of the original corrosion.
• The "S" in the seventh character indicates a sequela, meaning this code should be used for complications or conditions arising from the initial injury, not the initial acute burn itself.
• Ensure documentation clearly states the burn was chemical (corrosion) and not thermal (burn).