S31.041A

Pnctr w fb of low back and pelvis w penet retroperiton, init Puncture wound with foreign body of lower back and pelvis with penetration into retroperitoneum, initial encounter

Pnctr w fb of low back and pelvis w penet retroperiton, init Puncture wound 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.