2021 ICD-10-CM Code S29.099

Other injury of muscle and tendon of unspecified wall of thorax

Version 2021

Not Valid for Submission

S29.099 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of other injury of muscle and tendon of unspecified wall of thorax. The code is not specific and is NOT valid for the year 2021 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 S29.099 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.

ICD-10:S29.099
Short Description:Other injury of muscle and tendon of unsp wall of thorax
Long Description:Other injury of muscle and tendon of unspecified wall of thorax

Code Classification

Specific Coding for Other injury of muscle and tendon of unsp wall of thorax

Non-specific codes like S29.099 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10 codes with a higher level of specificity when coding for other injury of muscle and tendon of unsp wall of thorax:

  • Use S29.099A for initial encounter BILLABLE CODE
  • Use S29.099D for subsequent encounter BILLABLE CODE
  • Use S29.099S for sequela BILLABLE CODE

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code S29.099 are found in the index:

Information for Patients


Chest Injuries and Disorders

The chest is the part of the body between your neck and your abdomen. It includes the ribs and breastbone. Inside your chest are several organs, including the heart, lungs, and esophagus. The pleura, a large thin sheet of tissue, lines the inside of the chest cavity.

Chest injuries and disorders include


[Learn More in MedlinePlus]

Muscle Disorders

Also called: Myopathy

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

Sometimes the cause is not known.


[Learn More in MedlinePlus]

Code History

  • 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 (First year ICD-10-CM implemented into the HIPAA code set)