Version 2024

2024 ICD-10-CM Diagnosis Code S91.25

Open bite of toe with damage to nail

ICD-10-CM Code:
S91.25
ICD-10 Code for:
Open bite of toe with damage to nail
Is Billable?
Not Valid for Submission
Code Navigator:

Code Classification

  • Injury, poisoning and certain other consequences of external causes
    (S00–T88)
    • Injuries to the ankle and foot
      (S90-S99)
      • Open wound of ankle, foot and toes
        (S91)

S91.25 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of open bite of toe with damage to nail. The code is not specific and is NOT valid for the year 2024 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Specific Coding Applicable to Open bite of toe with damage to nail

Non-specific codes like S91.25 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10-CM codes with a higher level of specificity when coding for open bite of toe with damage to nail:

  • S91.251 for Open bite of right great toe with damage to nail - NON-BILLABLE CODE

  • Use S91.251A for initial encounter - BILLABLE CODE

  • Use S91.251D for subsequent encounter - BILLABLE CODE

  • Use S91.251S for sequela - BILLABLE CODE

  • S91.252 for Open bite of left great toe with damage to nail - NON-BILLABLE CODE

  • Use S91.252A for initial encounter - BILLABLE CODE

  • Use S91.252D for subsequent encounter - BILLABLE CODE

  • Use S91.252S for sequela - BILLABLE CODE

  • S91.253 for Open bite of unspecified great toe with damage to nail - NON-BILLABLE CODE

  • Use S91.253A for initial encounter - BILLABLE CODE

  • Use S91.253D for subsequent encounter - BILLABLE CODE

  • Use S91.253S for sequela - BILLABLE CODE

  • S91.254 for Open bite of right lesser toe(s) with damage to nail - NON-BILLABLE CODE

  • Use S91.254A for initial encounter - BILLABLE CODE

  • Use S91.254D for subsequent encounter - BILLABLE CODE

  • Use S91.254S for sequela - BILLABLE CODE

  • S91.255 for Open bite of left lesser toe(s) with damage to nail - NON-BILLABLE CODE

  • Use S91.255A for initial encounter - BILLABLE CODE

  • Use S91.255D for subsequent encounter - BILLABLE CODE

  • Use S91.255S for sequela - BILLABLE CODE

  • S91.256 for Open bite of unspecified lesser toe(s) with damage to nail - NON-BILLABLE CODE

  • Use S91.256A for initial encounter - BILLABLE CODE

  • Use S91.256D for subsequent encounter - BILLABLE CODE

  • Use S91.256S for sequela - BILLABLE CODE

  • S91.259 for Open bite of unspecified toe(s) with damage to nail - NON-BILLABLE CODE

  • Use S91.259A for initial encounter - BILLABLE CODE

  • Use S91.259D for subsequent encounter - BILLABLE CODE

  • Use S91.259S for sequela - BILLABLE CODE

Coding Guidelines

The appropriate 7th character is to be added to each code from block Open wound of ankle, foot and toes (S91). Use the following options for the aplicable episode of care:

  • A - initial encounter
  • D - subsequent encounter
  • S - sequela

Index to Diseases and Injuries References

The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).

Patient Education


Animal 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


[Learn More in MedlinePlus]

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.