S31.031
⚠ Non-billable (Header)Puncture wound without foreign body of lower back and pelvis with penetration into retroperitoneum
Injury, poisoning and certain other consequences of external causes (S00-T88)
⚠️ This is a category header code — not billable. Use a more specific child code below.
✅ No additional coding notes for S31.031
Child Codes (3)
S31.031APuncture wound without foreign body of lower back and pelvis with penetration into retroperitoneum, initial encounterS31.031DPuncture wound without foreign body of lower back and pelvis with penetration into retroperitoneum, subsequent encounterS31.031SPuncture wound without foreign body of lower back and pelvis with penetration into retroperitoneum, sequela
🧪 Validate Combinations
Add S31.031 to the Excludes Checker to validate against your full code list.
Open in Checker →Code Information
CodeS31.031
BillableNo — Header code
ParentS31.03
CategoryInjury, poisoning and certain other consequences of external causes (S00-T88)
Excludes10 rule(s)
Excludes20 note(s)
Child codes3
Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)