S31.021A

Lac w fb of lower back and pelvis w penet retroperiton, init Laceration with foreign body of lower back and pelvis with penetration into retroperitoneum, initial encounter

Lac w fb of lower back and pelvis w penet retroperiton, init Laceration with foreign body of lower back and pelvis with penetration into retroperitoneum, initial encounter: Injury, poisoning and certain other consequences of external causes (ICD-10-CM S00 to T88), a billable code.