Other injury of sigmoid colon, sequela

This code signifies a long-term or late-effect complication resulting from a past injury to the sigmoid colon, which is the S-shaped part of the large intestine connecting to the rectum. These sequelae can manifest as chronic pain, strictures, adhesions, or functional disturbances that persist after the initial injury has healed.

Apply this code when documenting a current condition that is a direct consequence of a previously sustained injury to the sigmoid colon. This is appropriate for follow-up encounters where the patient is being treated for the lasting effects of the original trauma, rather than the acute injury itself.

• Always use this code as a secondary diagnosis, following the code for the specific sequela (e.g., K56.5 for intestinal adhesions).
• Ensure documentation clearly links the current condition to a past sigmoid colon injury.
• This "S" seventh character indicates sequela, meaning the initial injury has healed, and the patient is now experiencing a residual effect.