2024 ICD-10-CM Diagnosis Code S29.009

Unspecified injury of muscle and tendon of unspecified wall of thorax

ICD-10-CM Code:
S29.009
ICD-10 Code for:
Unsp injury of muscle and tendon of unsp wall of thorax
Is Billable?
Not Valid for Submission
Code Navigator:

Code Classification

  • Injury, poisoning and certain other consequences of external causes
    (S00–T88)
    • Injuries to the thorax
      (S20-S29)
      • Other and unspecified injuries of thorax
        (S29)

S29.009 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of unspecified injury of muscle and tendon of unspecified wall of thorax. 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.

Unspecified diagnosis codes like S29.009 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 Unsp injury of muscle and tendon of unsp wall of thorax

Non-specific codes like S29.009 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 unsp injury of muscle and tendon of unsp wall of thorax:

  • Use S29.009A for initial encounter - BILLABLE CODE

  • Use S29.009D for subsequent encounter - BILLABLE CODE

  • Use S29.009S for sequela - BILLABLE CODE

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Dislocations, sprains and strains involving multiple body regions
  • Dislocations, sprains and strains involving thorax with lower back and pelvis
  • Dislocations/sprains/strains
  • Injury of fascia of thorax
  • Injury of muscle and tendon at thorax level
  • Injury of muscle of thorax
  • Injury of tendon of thorax
  • Traumatic injury of skeletal muscle of chest wall

Coding Guidelines

The appropriate 7th character is to be added to each code from block Other and unspecified injuries of thorax (S29). 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


Chest Injuries and Disorders

What is the chest?

The chest is the part of your body between your neck and your abdomen (belly). The medical term for your chest is thorax.

Your chest holds many important structures for breathing, digestion, blood circulation, and other important body functions. These structures include your:

  • Ribs and breastbone
  • Esophagus, the tube between your mouth and stomach
  • Trachea, your windpipe
  • Bronchi, the tubes that carry air from your windpipe to your lungs
  • Lungs
  • Pleura, a thin layer of tissue that covers the lungs and lines the inside wall of the chest space
  • Heart and large blood vessels
  • Thymus, a gland that's part of your immune system
  • Nerves

What are chest injuries and disorders?

Chest injuries and disorders are problems that affect any of the organs or structures located in your chest.

There are many types of chest injuries and disorders, for example:

  • Broken ribs
  • Esophagus disorders
  • Swallowing disorders, also called dysphagia
  • Tracheal disorders
  • Bronchial disorders
  • Lung diseases and collapsed lung
  • Pleural disorders
  • Heart diseases
  • Mediastinal diseases, which are tumors, inflammation, and other problems with the structures in the mediastinum, which is the space between your lungs, breastbone, and spine
  • Thoracic aortic aneurysm
  • Thoracic outlet syndrome

Chest injuries may happen from the force of car accidents, falls, or sports injuries. Or the chest may be pierced by a bullet or sharp object. Because your chest holds so many important structures, certain chest injuries may be life-threatening.

How are chest injuries and disorders diagnosed?

Diagnosis of chest injuries or disorders depends on the type of symptoms you're having and whether you've had a chest injury. Injuries are usually obvious, but in most cases, you'll need tests to know how serious an injury is.

There are many types of tests for diagnosing different types of chest injuries and disorders, for example:

  • Diagnostic imaging tests
  • Heart tests
  • Lung function tests
  • Bronchoscopy
  • Pleural fluid analysis
  • Dysphagia tests
  • Biopsy

Treatments will depend on the type of chest injury or disorder you have.


[Learn More in MedlinePlus]

Muscle Disorders

Your muscles help you move and help your body work. Different types of muscles have different jobs. There are many problems that can affect muscles. Muscle disorders can cause weakness, pain or even paralysis.

Causes of muscle disorders include:

  • Injury or overuse, such as sprains or strains, cramps or tendinitis
  • A genetic disorder, such as muscular dystrophy
  • Some cancers
  • Inflammation, such as myositis
  • Diseases of nerves that affect muscles
  • Infections
  • Certain medicines

Sometimes the cause of muscle disorders is unknown.


[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.