2025 ICD-10-CM Diagnosis Code S42.239

3-part fracture of surgical neck of unspecified humerus

ICD-10-CM Code:
S42.239
ICD-10 Code for:
3-part fracture of surgical neck of unspecified humerus
Is Billable?
Not Valid for Submission
Code Navigator:

S42.239 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of 3-part fracture of surgical neck of unspecified humerus. The code is not specific and is NOT valid for the year 2025 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.

Unspecified diagnosis codes like S42.239 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.

Specific Coding Applicable to 3-part fracture of surgical neck of unspecified humerus

Non-specific codes like S42.239 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 3-part fracture of surgical neck of unspecified humerus:

  • Use S42.239A for initial encounter for closed fracture - BILLABLE CODE

  • Use S42.239B for initial encounter for open fracture - BILLABLE CODE

  • Use S42.239D for subsequent encounter for fracture with routine healing - BILLABLE CODE

  • Use S42.239G for subsequent encounter for fracture with delayed healing - BILLABLE CODE

  • Use S42.239K for subsequent encounter for fracture with nonunion - BILLABLE CODE

  • Use S42.239P for subsequent encounter for fracture with malunion - BILLABLE CODE

  • Use S42.239S for sequela - BILLABLE CODE

Code Classification

  • Injury, poisoning and certain other consequences of external causes
    S00–T88
    • Injuries to the shoulder and upper arm
      S40-S49
      • Fracture of shoulder and upper arm
        S42

Approximate Synonyms

The following list of clinical terms are approximate synonyms, alternative descriptions, or common phrases that might be used by patients, healthcare providers, or medical coders to describe the same condition. These synonyms and related diagnosis terms are often used when searching for an ICD-10 code, especially when the exact medical terminology is unclear. Whether you're looking for lay terms, similar diagnosis names, or common language alternatives, this list can help guide you to the correct ICD-10 classification.

  • Closed fracture proximal humerus, three part
  • Open fracture of upper end of humerus
  • Open fracture proximal humerus, three part

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).

Patient Education


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 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]

Shoulder Injuries and Disorders

Your shoulder joint is composed of three bones: the clavicle (collarbone), the scapula (shoulder blade), and the humerus (upper arm bone). Your shoulders are the most movable joints in your body. They can also be unstable because the ball of the upper arm is larger than the shoulder socket that holds it. To remain in a stable or normal position, the shoulder must be anchored by muscles, tendons, and ligaments.

Because your shoulder can be unstable, it can be easily injured. Common problems include:

  • Sprains and strains
  • Dislocations
  • Separations
  • Tendinitis
  • Bursitis
  • Torn rotator cuffs
  • Frozen shoulder
  • Fractures (broken bones)
  • Arthritis

Health care providers diagnose shoulder problems by using your medical history, a physical exam, and imaging tests.

Often, the first treatment for shoulder problems is RICE. This stands for Rest, Ice, Compression, and Elevation. Other treatments include exercise and medicines to reduce pain and swelling. If those don't work, you may need surgery.

NIH: National Institute of Arthritis and Musculoskeletal and Skin Diseases


[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.