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  5. S91
  6. 2024 ICD-10-CM Code S91.3
Version 2024
Non-Billable Code

2024 ICD-10-CM Diagnosis Code S91.3

Open wound of foot

ICD-10-CM Code:
S91.3
ICD-10 Code for:
Open wound of foot
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)

S91.3 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 wound of foot. 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 wound of foot

Non-specific codes like S91.3 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 wound of foot:

  • S91.30 for Unspecified open wound of foot - NON-BILLABLE CODE

  • S91.301 for Unspecified open wound, right foot - NON-BILLABLE CODE

  • Use S91.301A for initial encounter - BILLABLE CODE

  • Use S91.301D for subsequent encounter - BILLABLE CODE

  • Use S91.301S for sequela - BILLABLE CODE

  • S91.302 for Unspecified open wound, left foot - NON-BILLABLE CODE

  • Use S91.302A for initial encounter - BILLABLE CODE

  • Use S91.302D for subsequent encounter - BILLABLE CODE

  • Use S91.302S for sequela - BILLABLE CODE

  • S91.309 for Unspecified open wound, unspecified foot - NON-BILLABLE CODE

  • Use S91.309A for initial encounter - BILLABLE CODE

  • Use S91.309D for subsequent encounter - BILLABLE CODE

  • Use S91.309S for sequela - BILLABLE CODE

  • S91.31 for Laceration without foreign body of foot - NON-BILLABLE CODE

  • S91.311 for Laceration without foreign body, right foot - NON-BILLABLE CODE

  • Use S91.311A for initial encounter - BILLABLE CODE

  • Use S91.311D for subsequent encounter - BILLABLE CODE

  • Use S91.311S for sequela - BILLABLE CODE

  • S91.312 for Laceration without foreign body, left foot - NON-BILLABLE CODE

  • Use S91.312A for initial encounter - BILLABLE CODE

  • Use S91.312D for subsequent encounter - BILLABLE CODE

  • Use S91.312S for sequela - BILLABLE CODE

  • S91.319 for Laceration without foreign body, unspecified foot - NON-BILLABLE CODE

  • Use S91.319A for initial encounter - BILLABLE CODE

  • Use S91.319D for subsequent encounter - BILLABLE CODE

  • Use S91.319S for sequela - BILLABLE CODE

  • S91.32 for Laceration with foreign body of foot - NON-BILLABLE CODE

  • S91.321 for Laceration with foreign body, right foot - NON-BILLABLE CODE

  • Use S91.321A for initial encounter - BILLABLE CODE

  • Use S91.321D for subsequent encounter - BILLABLE CODE

  • Use S91.321S for sequela - BILLABLE CODE

  • S91.322 for Laceration with foreign body, left foot - NON-BILLABLE CODE

  • Use S91.322A for initial encounter - BILLABLE CODE

  • Use S91.322D for subsequent encounter - BILLABLE CODE

  • Use S91.322S for sequela - BILLABLE CODE

  • S91.329 for Laceration with foreign body, unspecified foot - NON-BILLABLE CODE

  • Use S91.329A for initial encounter - BILLABLE CODE

  • Use S91.329D for subsequent encounter - BILLABLE CODE

  • Use S91.329S for sequela - BILLABLE CODE

  • S91.33 for Puncture wound without foreign body of foot - NON-BILLABLE CODE

  • S91.331 for Puncture wound without foreign body, right foot - NON-BILLABLE CODE

  • Use S91.331A for initial encounter - BILLABLE CODE

  • Use S91.331D for subsequent encounter - BILLABLE CODE

  • Use S91.331S for sequela - BILLABLE CODE

  • S91.332 for Puncture wound without foreign body, left foot - NON-BILLABLE CODE

  • Use S91.332A for initial encounter - BILLABLE CODE

  • Use S91.332D for subsequent encounter - BILLABLE CODE

  • Use S91.332S for sequela - BILLABLE CODE

  • S91.339 for Puncture wound without foreign body, unspecified foot - NON-BILLABLE CODE

  • Use S91.339A for initial encounter - BILLABLE CODE

  • Use S91.339D for subsequent encounter - BILLABLE CODE

  • Use S91.339S for sequela - BILLABLE CODE

  • S91.34 for Puncture wound with foreign body of foot - NON-BILLABLE CODE

  • S91.341 for Puncture wound with foreign body, right foot - NON-BILLABLE CODE

  • Use S91.341A for initial encounter - BILLABLE CODE

  • Use S91.341D for subsequent encounter - BILLABLE CODE

  • Use S91.341S for sequela - BILLABLE CODE

  • S91.342 for Puncture wound with foreign body, left foot - NON-BILLABLE CODE

  • Use S91.342A for initial encounter - BILLABLE CODE

  • Use S91.342D for subsequent encounter - BILLABLE CODE

  • Use S91.342S for sequela - BILLABLE CODE

  • S91.349 for Puncture wound with foreign body, unspecified foot - NON-BILLABLE CODE

  • Use S91.349A for initial encounter - BILLABLE CODE

  • Use S91.349D for subsequent encounter - BILLABLE CODE

  • Use S91.349S for sequela - BILLABLE CODE

  • S91.35 for Open bite of foot - NON-BILLABLE CODE

  • S91.351 for Open bite, right foot - NON-BILLABLE CODE

  • Use S91.351A for initial encounter - BILLABLE CODE

  • Use S91.351D for subsequent encounter - BILLABLE CODE

  • Use S91.351S for sequela - BILLABLE CODE

  • S91.352 for Open bite, left foot - NON-BILLABLE CODE

  • Use S91.352A for initial encounter - BILLABLE CODE

  • Use S91.352D for subsequent encounter - BILLABLE CODE

  • Use S91.352S for sequela - BILLABLE CODE

  • S91.359 for Open bite, unspecified foot - NON-BILLABLE CODE

  • Use S91.359A for initial encounter - BILLABLE CODE

  • Use S91.359D for subsequent encounter - BILLABLE CODE

  • Use S91.359S 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

Patient Education


Foot Injuries and Disorders

Each of your feet has 26 bones, 33 joints, and more than 100 tendons, muscles, and ligaments. No wonder a lot of things can go wrong. Here are a few common problems:

  • Bunions - hard, painful bumps on the big toe joint
  • Corns and calluses - thickened skin from friction or pressure
  • Plantar warts - warts on the soles of your feet
  • Fallen arches - also called flat feet

Ill-fitting shoes often cause these problems. Aging and being overweight also increase your chances of having foot problems.


[Learn More in MedlinePlus]

Wounds and Injuries

An injury is damage to your body. It is a general term that refers to harm caused by accidents, falls, hits, weapons, and more. In the U.S., millions of people injure themselves every year. These injuries range from minor to life-threatening. Injuries can happen at work or play, indoors or outdoors, driving a car, or walking across the street.

Wounds are injuries that break the skin or other body tissues. They include cuts, scrapes, scratches, and punctured skin. They often happen because of an accident, but surgery, sutures, and stitches also cause wounds. Minor wounds usually aren't serious, but it is important to clean them. Serious and infected wounds may require first aid followed by a visit to your doctor. You should also seek attention if the wound is deep, you cannot close it yourself, you cannot stop the bleeding or get the dirt out, or it does not heal.

Other common types of injuries include:

  • Animal bites
  • Bruises
  • Burns
  • Dislocations
  • Electrical injuries
  • Fractures (broken bones)
  • Sprains and strains

[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.