Pnctr w/o fb of low back and pelv w penet retroperiton, sqla

This code signifies a puncture wound affecting the lower back or pelvic region that has extended into the retroperitoneal space, and the encounter is for the management of a long-term complication or residual effect of that injury. The injury itself did not involve a foreign object.

Use this code when documenting follow-up care for conditions such as chronic pain, nerve damage, or adhesions that resulted from a past puncture wound to the lower back or pelvis that penetrated the retroperitoneum. This code is appropriate when the initial acute injury has healed, but the patient is still experiencing related sequelae.

• Ensure documentation clearly states the puncture wound penetrated the retroperitoneum.
• Confirm the encounter is for a sequela (late effect) of the injury, not the initial acute treatment.
• Always code the specific sequela (e.g., chronic pain, nerve damage) first, followed by this external cause code.