2027 ICD-10-CM Diagnosis Code S29Other and unspecified injuries of thorax

ICD-10-CM Codes›S00–T88›S20-S29›S29

ICD-10-CM S29
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

S29 is a non-billable ICD-10-CM category code for other and unspecified injuries of thorax, so it cannot be submitted on claims. Use a more specific code from this category instead, such as S29.001A, S29.001D, S29.001S, and S29.002A.

Code Identity

ICD-10-CM Code
S29
Billable Status
No — Non-Billable Category
Code Describes
Other and unspecified injuries of thorax
Short Description
Other and unspecified injuries of thorax
Same as the full description in the CMS dataset.
Chapter
S20-S29
Injuries to the thorax

Code Classification

ChapterS00–T88Injury, poisoning and certain other consequences of external causes
SectionS20-S29Injuries to the thorax
CategoryS29Other and unspecified injuries of thorax
This CodeS29Other and unspecified injuries of thorax

Specific Coding for Other and unspecified injuries of thoraxOverview

Non-specific codes like S29 require more characters. Use one of these billable codes instead:

  • S29.0 for Injury of muscle and tendon at thorax level

  • S29.00 for Unspecified injury of muscle and tendon of thorax

  • S29.01 for Strain of muscle and tendon of thorax

  • S29.02 for Laceration of muscle and tendon of thorax

  • S29.09 for Other injury of muscle and tendon of thorax

  • S29.8 for Other specified injuries of thorax

  • S29.9 for Unspecified injury of thorax

Coding GuidelinesGuidance

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 applicable episode of care:

  • A - initial encounter
  • D - subsequent encounter
  • S - sequela

Source: ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027, published by CMS and the National Center for Health Statistics.

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to S29: its own notes plus those printed at block S20-S29 and Chapter 19. A note printed at a category, block or chapter applies to every code under it.

Includes

Further defines, or gives examples of, the content of the category.

From Block S20-S29 Injuries to the thorax applies to 1,602 codes
  • injuries of breast
  • injuries of chest (wall)
  • injuries of interscapular area

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Block S20-S29 Injuries to the thorax applies to 1,602 codes
  • burns and corrosions (T20-T32)
  • effects of foreign body in bronchus (T17.5)
  • effects of foreign body in esophagus (T18.1)
  • effects of foreign body in lung (T17.8)
  • effects of foreign body in trachea (T17.4)
  • frostbite (T33-T34)
  • injuries of axilla
  • injuries of clavicle
  • injuries of scapular region
  • injuries of shoulder
  • insect bite or sting, venomous (T63.4)
From Chapter 19 (S00-T88) Injury, poisoning and certain other consequences of external causes applies to 41,187 codes

Use Additional Code

Add a second code, after this one, to fully describe the condition.

From Chapter 19 (S00-T88) Injury, poisoning and certain other consequences of external causes applies to 41,187 codes
  • code to identify any retained foreign body, if applicable (Z18.-)

Code Also

A second code may be needed to fully describe the condition; the note gives no sequencing direction.

  • any associated open wound (S21.-)

Notes

General instructions on how these codes are used.

From Chapter 19 (S00-T88) Injury, poisoning and certain other consequences of external causes applies to 41,187 codes
  • Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
  • The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.

7th Character

Every code in the category takes a 7th character from the listed values, with the placeholder X filling any empty positions before it.

  • The appropriate 7th character is to be added to each code from category S29
Values for category S29 Encounter: Initial, Subsequent, Sequela
  • Ainitial encounter
  • Dsubsequent encounter
  • Ssequela

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Patient EducationClinical

Chest Injuries and Disorders

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

The full article covers:

  • What is the chest?
  • What are chest injuries and disorders?
  • How are chest injuries and disorders diagnosed?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About S29Overview

What is the ICD-10 code for other and unspecified injuries of thorax?

S29 is the ICD-10-CM category for other and unspecified injuries of thorax, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

Is S29 (Other and unspecified injuries of thorax) a billable code?

No. This is a category header that groups the codes for other and unspecified injuries of thorax, and headers cannot be submitted on claims. Claims for other and unspecified injuries of thorax need a more specific code from this category, such as S29.001A, S29.001D, and S29.001S.