Corrosion of first degree of unspecified shoulder, sequela

This code indicates a first-degree chemical burn (corrosion) on an unspecified shoulder, representing the long-term effects or complications of the initial injury. A first-degree corrosion involves only the outermost layer of skin, causing redness and mild pain, and the "sequela" designation means the acute injury has healed, but residual issues persist.

Use this code when documenting a patient presenting with a chronic or late-stage complication directly resulting from a first-degree chemical burn to an unspecified shoulder. This applies after the initial acute injury has resolved, and the patient is being treated for a lingering effect, such as scarring, pigmentation changes, or chronic discomfort.

• Always ensure the documentation clearly states the burn was chemical (corrosion) and not thermal.
• Confirm the burn is explicitly noted as first-degree and located on an unspecified shoulder.
• Only use the "S" (sequela) seventh character for conditions that are residual effects after the acute phase of the injury has passed.