S31.051 Open bite of lower back and pelvis with penetration into retroperitoneum

✓ Billable ICD-10-CM 2026
Open S31.051 in Web App →

The ICD-10-CM code for Open bite of lower back and pelvis with penetration into retroperitoneum is S31.051 (FY2026). It is a billable, claim-ready diagnosis code.

Classification

Section
S30-S39: Injuries to the abdomen, lower back, lumbar spine, pelvis and external genitals (S30-S39)
Category S31
223 codes (186 billable)
FY2026 Status
Stable since FY2024

Also Known As

ICD-10-CM Alphabetic Index entries that lead to S31.051:

  • Bite (s) (animal) (human) › pelvis › with penetration into retroperitoneal space
  • Bite (s) (animal) (human) › back › lower › with penetration into retroperitoneal space

Official Coding Guidelines

Sequence blood vessel/nerve injury first (fragment)

injury is to the blood vessels or nerves, that injury should be sequenced first.

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.19.b.2
Do not assign injury codes for iatrogenic injuries; code complication

3) Iatrogenic injuries Injury codes from Chapter 19 should not be assigned for injuries that occur during, or as a result of, a medical intervention. Assign the appropriate complication code(s).

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.19.b.3

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

Related Codes

Parent Code

S31 Open wound of abdomen, lower back, pelvis and external genitals

Related Codes in S31

S31 Open wound of abdomen, lower back, pelvis and external genitals S31.0 Open wound of lower back and pelvis S31.00 Unspecified open wound of lower back and pelvis S31.000 Unspecified open wound of lower back and pelvis without penetration into retroperitoneum S31.001 Unspecified open wound of lower back and pelvis with penetration into retroperitoneum S31.01 Laceration without foreign body of lower back and pelvis S31.010 Laceration without foreign body of lower back and pelvis without penetration into retroperitoneum S31.011 Laceration without foreign body of lower back and pelvis with penetration into retroperitoneum S31.02 Laceration with foreign body of lower back and pelvis S31.020 Laceration with foreign body of lower back and pelvis without penetration into retroperitoneum S31.021 Laceration with foreign body of lower back and pelvis with penetration into retroperitoneum S31.03 Puncture wound without foreign body of lower back and pelvis S31.030 Puncture wound without foreign body of lower back and pelvis without penetration into retroperitoneum S31.031 Puncture wound without foreign body of lower back and pelvis with penetration into retroperitoneum S31.04 Puncture wound with foreign body of lower back and pelvis S31.040 Puncture wound with foreign body of lower back and pelvis without penetration into retroperitoneum S31.041 Puncture wound with foreign body of lower back and pelvis with penetration into retroperitoneum S31.05 Open bite of lower back and pelvis S31.050 Open bite of lower back and pelvis without penetration into retroperitoneum S31.1 Open wound of abdominal wall without penetration into peritoneal cavity
Search all 70,000+ ICD-10-CM codes →
Reviewed by Prajwal Shrestha, CPC, CRC
Certified Professional Coder (CPC) and Certified Risk Adjustment Coder (CRC) · AAPC Member ID 01997614 · About · Editorial policy · Content last reviewed: 2025-10-01

Get HCC Mappings, Clinical Summaries, and More

Access premium features including HCC risk adjustment, FDA drug indications, AI coding assistant, and comprehensive clinical context.

Start Free Trial