Puncture wound with foreign body of scalp, sequela

This code signifies a puncture wound to the scalp that includes a foreign object embedded within the tissue, with the "S" indicating a sequela. This means the code is used to report a late effect or complication directly resulting from an initial puncture wound with a foreign body in the scalp, rather than the initial acute injury.

Apply this code when documenting a patient presenting with a long-term complication or residual effect stemming from a previous puncture wound of the scalp that involved a foreign body. Examples include chronic pain, infection, scarring, or nerve damage directly attributable to the original injury. Documentation should clearly link the current condition to the past puncture wound with foreign body.

• Ensure the documentation explicitly states the current condition is a "sequela" or "late effect" of the original injury.
• Do not use this code for the initial acute injury; instead, use the appropriate acute injury code.
• Always code the specific nature of the sequela (e.g., chronic pain, scar) in addition to this external cause code.