ICD-10 Code S31.051

Open bite of lower back and pelvis with penetration into retroperitoneum

Version 2019 Non-Billable Code

Not Valid for Submission

S31.051 is a "header" nonspecific and non-billable code code, consider using a code with a higher level of specificity for a diagnosis of open bite of lower back and pelvis with penetration into retroperitoneum. The code is NOT valid for the year 2019 for the submission of HIPAA-covered transactions.

ICD-10: S31.051
Short Description:Open bite of lower back and pelvis w penet retroperitoneum
Long Description:Open bite of lower back and pelvis with penetration into retroperitoneum

Consider the following ICD-10 codes with a higher level of specificity:

  • S31.051A - Open bite of lower back and pelvis with penetration into retroperitoneum, initial encounter
  • S31.051D - Open bite of lower back and pelvis with penetration into retroperitoneum, subsequent encounter
  • S31.051S - Open bite of lower back and pelvis with penetration into retroperitoneum, sequela

Code Classification

  • Injury, poisoning and certain other consequences of external causes (S00–T98)
    • Injuries to the abdomen, lower back, lumbar spine, pelvis and external genitals (S30-S39)
      • Opn wnd abdomen, lower back, pelvis and external genitals (S31)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (first year ICD-10-CM implemented into the HIPAA mandated code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019

Information for Medical Professionals

Diagnostic Related Groups

The Diagnostic Related Groups (DRGs) are a patient classification scheme which provides a means of relating the type of patients a hospital treats. The DRGs divides all possible principal diagnoses into mutually exclusive principal diagnosis areas referred to as Major Diagnostic Categories (MDC). The diagnosis code S31.051 is grouped in the following groups for version MS-DRG V36.0 applicable from 10/01/2018 through 09/30/2019.

  • 604 - TRAUMA TO THE SKIN, SUBCUTANEOUS TISSUE AND BREAST WITH MCC
  • 605 - TRAUMA TO THE SKIN, SUBCUTANEOUS TISSUE AND BREAST WITHOUT MCC
  • 698 - OTHER KIDNEY AND URINARY TRACT DIAGNOSES WITH MCC
  • 699 - OTHER KIDNEY AND URINARY TRACT DIAGNOSES WITH CC
  • 700 - OTHER KIDNEY AND URINARY TRACT DIAGNOSES WITHOUT CC/MCC
  • 949 - AFTERCARE WITH CC/MCC
  • 950 - AFTERCARE WITHOUT CC/MCC

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code S31.051 are found in the index:


Information for Patients


Animal Bites

Also called: Cat bites, Dog bites

Wild animals usually avoid people. They might attack, however, if they feel threatened, are sick, or are protecting their young or territory. Attacks by pets are more common. Animal bites rarely are life-threatening, but if they become infected, you can develop serious medical problems.

To prevent animal bites and complications from bites

  • Never pet, handle, or feed unknown animals
  • Leave snakes alone
  • Watch your children closely around animals
  • Vaccinate your cats, ferrets, and dogs against rabies
  • Spay or neuter your dog to make it less aggressive
  • Get a tetanus booster if you have not had one recently
  • Wear boots and long pants when you are in areas with venomous snakes

If an animal bites you, clean the wound with soap and water as soon as possible. Get medical attention if necessary.

Centers for Disease Control and Prevention

  • Animal bites - self-care (Medical Encyclopedia)
  • Jellyfish stings (Medical Encyclopedia)
  • Marine animal stings or bites (Medical Encyclopedia)
  • Snake bites (Medical Encyclopedia)

[Learn More]

ICD-10 Footnotes

General Equivalence Map Definitions
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

  • Approximate Flag - The approximate flag is on, indicating that the relationship between the code in the source system and the code in the target system is an approximate equivalent.
  • No Map Flag - The no map flag indicates that a code in the source system is not linked to any code in the target system.
  • Combination Flag - The combination flag indicates that more than one code in the target system is required to satisfy the full equivalent meaning of a code in the source system.