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  6. 2026 ICD-10-CM Code S92.31

2026 ICD-10-CM Diagnosis Code S92.31

Fracture of first metatarsal bone

ICD-10-CM Code:
S92.31
ICD-10 Code for:
Fracture of first metatarsal bone
Is Billable?
Not Valid for Submission
Code Navigator:

S92.31 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of fracture of first metatarsal bone. The code is not specific and is NOT valid for the year 2026 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 Fracture of first metatarsal bone

Non-specific codes like S92.31 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 fracture of first metatarsal bone:

  • S92.311 for Displaced fracture of first metatarsal bone, right foot - NON-BILLABLE CODE

  • Use S92.311A for initial encounter for closed fracture - BILLABLE CODE

  • Use S92.311B for initial encounter for open fracture - BILLABLE CODE

  • Use S92.311D for subsequent encounter for fracture with routine healing - BILLABLE CODE

  • Use S92.311G for subsequent encounter for fracture with delayed healing - BILLABLE CODE

  • Use S92.311K for subsequent encounter for fracture with nonunion - BILLABLE CODE

  • Use S92.311P for subsequent encounter for fracture with malunion - BILLABLE CODE

  • Use S92.311S for sequela - BILLABLE CODE

  • S92.312 for Displaced fracture of first metatarsal bone, left foot - NON-BILLABLE CODE

  • Use S92.312A for initial encounter for closed fracture - BILLABLE CODE

  • Use S92.312B for initial encounter for open fracture - BILLABLE CODE

  • Use S92.312D for subsequent encounter for fracture with routine healing - BILLABLE CODE

  • Use S92.312G for subsequent encounter for fracture with delayed healing - BILLABLE CODE

  • Use S92.312K for subsequent encounter for fracture with nonunion - BILLABLE CODE

  • Use S92.312P for subsequent encounter for fracture with malunion - BILLABLE CODE

  • Use S92.312S for sequela - BILLABLE CODE

  • S92.313 for Displaced fracture of first metatarsal bone, unspecified foot - NON-BILLABLE CODE

  • Use S92.313A for initial encounter for closed fracture - BILLABLE CODE

  • Use S92.313B for initial encounter for open fracture - BILLABLE CODE

  • Use S92.313D for subsequent encounter for fracture with routine healing - BILLABLE CODE

  • Use S92.313G for subsequent encounter for fracture with delayed healing - BILLABLE CODE

  • Use S92.313K for subsequent encounter for fracture with nonunion - BILLABLE CODE

  • Use S92.313P for subsequent encounter for fracture with malunion - BILLABLE CODE

  • Use S92.313S for sequela - BILLABLE CODE

  • S92.314 for Nondisplaced fracture of first metatarsal bone, right foot - NON-BILLABLE CODE

  • Use S92.314A for initial encounter for closed fracture - BILLABLE CODE

  • Use S92.314B for initial encounter for open fracture - BILLABLE CODE

  • Use S92.314D for subsequent encounter for fracture with routine healing - BILLABLE CODE

  • Use S92.314G for subsequent encounter for fracture with delayed healing - BILLABLE CODE

  • Use S92.314K for subsequent encounter for fracture with nonunion - BILLABLE CODE

  • Use S92.314P for subsequent encounter for fracture with malunion - BILLABLE CODE

  • Use S92.314S for sequela - BILLABLE CODE

  • S92.315 for Nondisplaced fracture of first metatarsal bone, left foot - NON-BILLABLE CODE

  • Use S92.315A for initial encounter for closed fracture - BILLABLE CODE

  • Use S92.315B for initial encounter for open fracture - BILLABLE CODE

  • Use S92.315D for subsequent encounter for fracture with routine healing - BILLABLE CODE

  • Use S92.315G for subsequent encounter for fracture with delayed healing - BILLABLE CODE

  • Use S92.315K for subsequent encounter for fracture with nonunion - BILLABLE CODE

  • Use S92.315P for subsequent encounter for fracture with malunion - BILLABLE CODE

  • Use S92.315S for sequela - BILLABLE CODE

  • S92.316 for Nondisplaced fracture of first metatarsal bone, unspecified foot - NON-BILLABLE CODE

  • Use S92.316A for initial encounter for closed fracture - BILLABLE CODE

  • Use S92.316B for initial encounter for open fracture - BILLABLE CODE

  • Use S92.316D for subsequent encounter for fracture with routine healing - BILLABLE CODE

  • Use S92.316G for subsequent encounter for fracture with delayed healing - BILLABLE CODE

  • Use S92.316K for subsequent encounter for fracture with nonunion - BILLABLE CODE

  • Use S92.316P for subsequent encounter for fracture with malunion - BILLABLE CODE

  • Use S92.316S for sequela - BILLABLE CODE

Code Classification

  • Injury, poisoning and certain other consequences of external causes
    S00–T88
    • Injuries to the ankle and foot
      S90-S99
      • Fracture of foot and toe, except ankle
        S92

Coding Guidelines

The principles of multiple coding of injuries should be followed in coding fractures. Fractures of specified sites are coded individually by site nd the level of detail furnished by medical record content.

A fracture not indicated as open or closed should be coded to closed. A fracture not indicated whether displaced or not displaced should be coded to displaced.

Initial vs. Subsequent Encounter for Fractures

Traumatic fractures are coded using the appropriate 7th character for initial encounter (A, B, C) for each encounter where the patient is receiving active treatment for the fracture. The appropriate 7th character for initial encounter should also be assigned for a patient who delayed seeking treatment for the fracture or nonunion.

Fractures are coded using the appropriate 7th character for subsequent care for encounters after the patient has completed active treatment of the fracture and is receiving routine care for the fracture during the healing or recovery phase.

Care for complications of surgical treatment for fracture repairs during the healing or recovery phase should be coded with the appropriate complication codes.

Care of complications of fractures, such as malunion and nonunion, should be reported with the appropriate 7th character for subsequent care with nonunion (K, M, N,) or subsequent care with malunion (P, Q, R).

Malunion/nonunion: The appropriate 7th character for initial encounter should also be assigned for a patient who delayed seeking treatment for the fracture or nonunion.

The open fracture designations in the assignment of the 7th character for fractures of the forearm, femur and lower leg, including ankle are based on the Gustilo open fracture classification. When the Gustilo classification type is not specified for an open fracture, the 7th character for open fracture type I or II should be assigned (B, E, H, M, Q).

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).

Index of External Cause of Injuries

References found for this diagnosis code in the External Cause of Injuries Index:

    • Fracture, traumatic(abduction) (adduction) (separation)
      • metatarsal bone
        • first (displaced)
    • Fracture, traumatic(abduction) (adduction) (separation)
      • metatarsal bone
        • first (displaced)
          • nondisplaced

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]

Fractures

What is a fracture?

A fracture is a break in a bone. Fractures are usually caused by injuries. Since they can sometimes be serious, it's important to get medical care right away if you think you have a fracture.

What are the different types of fractures?

There are different ways to describe fractures. For example, there are different types of fractures based on:

  • Whether the bone is partially or completely broken.
  • Whether the bone breaks through the skin; if it does, it's called an open (or compound) fracture. If not, it's a closed fracture.
  • The direction or shape of the break, for example if it's in a line across the bone or if it has some kind of pattern.
  • The cause of the break. For example, a stress fracture is a small break in a bone that is often caused by overuse.
  • Which bone is broken, for example facial fractures include nose and jaw fractures.

What causes fractures?

Fractures commonly happen because of car accidents, falls, or sports injuries. Overuse and repetitive motions can also cause fractures.

Low bone density and osteoporosis are conditions which cause weakening of your bones. Having one of these conditions makes you much more likely to break a bone.

What are the symptoms of a fracture?

The symptoms of a fracture can vary, depending on which bone you broke. But they may include:

  • Intense pain
  • Deformity, for example a limb that looks out of place
  • Swelling, bruising, or tenderness around the injury
  • Trouble moving the injured part

If you think that you may have broken a bone, get medical care right away.

How are fractures diagnosed?

To find out if you have a fracture, your health provider will do a physical exam and ask about your injury. They will also likely order an x-ray or other imaging test to see if your bone is broken.

What are the treatments for fractures?

The most common treatment for a fracture is for you to wear a cast or a splint. This will keep your bone from moving while it heals. How long you need to wear it will depend on the type of fracture and which bone is affected. But it's often for several weeks. Your provider will let you know when you can get it off.

In some cases, you may need surgery to put in plates, pins, or screws to keep the bone in place.

Can fractures be prevented?

There are steps you can take to lower your risk of fractures:

  • Keeping your bones strong by:
    • Getting enough calcium and vitamin D in your diet
    • Getting regular physical activity, including weight bearing exercises such as walking, tennis, and dancing
    • Getting treatment for low bone density or osteoporosis (if needed)
  • Wearing protective equipment when you do sports
  • Preventing falls by:
    • Getting rid of any tripping hazards in your home
    • Being careful when walking on wet or icy surfaces
    • Choosing the right footwear

[Learn More in MedlinePlus]

Code History

  • FY 2026 - No Change, effective from 10/1/2025 through 9/30/2026
  • FY 2025 - No Change, effective from 10/1/2024 through 9/30/2025
  • 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.