Other and unspecified injuries of thorax (S29) ICD-10-CM
The S29 code range covers other and unspecified injuries of thorax with 62 ICD-10-CM diagnosis codes. 42 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Code Also
A "code also" note instructs that two codes may be required to fully describe a condition, but this note does not provide sequencing direction.
- any associated open wound S21
7th Character Note
Certain ICD-10-CM categories have applicable 7th characters. The applicable 7th character is required for all codes within the category, or as the notes in the Tabular List instruct. The 7th character must always be the 7th character in the data field. If a code that requires a 7th character is not 6 characters, a placeholder X must be used to fill in the empty characters.
- The appropriate 7th character is to be added to each code from category S29
7th Character
Indicates that a seventh character is to be assigned to codes in a subcategory.
- A - initial encounter
- D - subsequent encounter
- S - sequela
Codes in the S29 Range 62 codes · 42 billable
- S29 Other and unspecified injuries of thoraxNon-billable
- S29.0 Injury of muscle and tendon at thorax levelNon-billable
- S29.00 Unspecified injury of muscle and tendon of thoraxNon-billable
- S29.001 Unspecified injury of muscle and tendon of front wall of thoraxNon-billable
- S29.001A Unspecified injury of muscle and tendon of front wall of thorax, initial encounter
- S29.001D Unspecified injury of muscle and tendon of front wall of thorax, subsequent encounter
- S29.001S Unspecified injury of muscle and tendon of front wall of thorax, sequela
- S29.002 Unspecified injury of muscle and tendon of back wall of thoraxNon-billable
- S29.002A Unspecified injury of muscle and tendon of back wall of thorax, initial encounter
- S29.002D Unspecified injury of muscle and tendon of back wall of thorax, subsequent encounter
- S29.002S Unspecified injury of muscle and tendon of back wall of thorax, sequela
- S29.009 Unspecified injury of muscle and tendon of unspecified wall of thoraxNon-billable
- S29.009A Unspecified injury of muscle and tendon of unspecified wall of thorax, initial encounter
- S29.009D Unspecified injury of muscle and tendon of unspecified wall of thorax, subsequent encounter
- S29.009S Unspecified injury of muscle and tendon of unspecified wall of thorax, sequela
- S29.01 Strain of muscle and tendon of thoraxNon-billable
- S29.011 Strain of muscle and tendon of front wall of thoraxNon-billable
- S29.011A Strain of muscle and tendon of front wall of thorax, initial encounter
- S29.011D Strain of muscle and tendon of front wall of thorax, subsequent encounter
- S29.011S Strain of muscle and tendon of front wall of thorax, sequela
- S29.012 Strain of muscle and tendon of back wall of thoraxNon-billable
- S29.012A Strain of muscle and tendon of back wall of thorax, initial encounter
- S29.012D Strain of muscle and tendon of back wall of thorax, subsequent encounter
- S29.012S Strain of muscle and tendon of back wall of thorax, sequela
- S29.019 Strain of muscle and tendon of unspecified wall of thoraxNon-billable
- S29.019A Strain of muscle and tendon of unspecified wall of thorax, initial encounter
- S29.019D Strain of muscle and tendon of unspecified wall of thorax, subsequent encounter
- S29.019S Strain of muscle and tendon of unspecified wall of thorax, sequela
- S29.02 Laceration of muscle and tendon of thoraxNon-billable
- S29.021 Laceration of muscle and tendon of front wall of thoraxNon-billable
- S29.021A Laceration of muscle and tendon of front wall of thorax, initial encounter
- S29.021D Laceration of muscle and tendon of front wall of thorax, subsequent encounter
- S29.021S Laceration of muscle and tendon of front wall of thorax, sequela
- S29.022 Laceration of muscle and tendon of back wall of thoraxNon-billable
- S29.022A Laceration of muscle and tendon of back wall of thorax, initial encounter
- S29.022D Laceration of muscle and tendon of back wall of thorax, subsequent encounter
- S29.022S Laceration of muscle and tendon of back wall of thorax, sequela
- S29.029 Laceration of muscle and tendon of unspecified wall of thoraxNon-billable
- S29.029A Laceration of muscle and tendon of unspecified wall of thorax, initial encounter
- S29.029D Laceration of muscle and tendon of unspecified wall of thorax, subsequent encounter
- S29.029S Laceration of muscle and tendon of unspecified wall of thorax, sequela
- S29.09 Other injury of muscle and tendon of thoraxNon-billable
- S29.091 Other injury of muscle and tendon of front wall of thoraxNon-billable
- S29.091A Other injury of muscle and tendon of front wall of thorax, initial encounter
- S29.091D Other injury of muscle and tendon of front wall of thorax, subsequent encounter
- S29.091S Other injury of muscle and tendon of front wall of thorax, sequela
- S29.092 Other injury of muscle and tendon of back wall of thoraxNon-billable
- S29.092A Other injury of muscle and tendon of back wall of thorax, initial encounter
- S29.092D Other injury of muscle and tendon of back wall of thorax, subsequent encounter
- S29.092S Other injury of muscle and tendon of back wall of thorax, sequela
- S29.099 Other injury of muscle and tendon of unspecified wall of thoraxNon-billable
- S29.099A Other injury of muscle and tendon of unspecified wall of thorax, initial encounter
- S29.099D Other injury of muscle and tendon of unspecified wall of thorax, subsequent encounter
- S29.099S Other injury of muscle and tendon of unspecified wall of thorax, sequela
- S29.8 Other specified injuries of thoraxNon-billable
- S29.8XXA Other specified injuries of thorax, initial encounter
- S29.8XXD Other specified injuries of thorax, subsequent encounter
- S29.8XXS Other specified injuries of thorax, sequela
- S29.9 Unspecified injury of thoraxNon-billable
- S29.9XXA Unspecified injury of thorax, initial encounter
- S29.9XXD Unspecified injury of thorax, subsequent encounter
- S29.9XXS Unspecified injury of thorax, sequela
About the S29 Code Range
These injuries affect the thorax, or chest, and include muscle and tendon injuries as well as other or unspecified chest injuries.
S29.0 groups muscle and tendon injuries. Its subdivisions distinguish an unspecified injury (S29.00), strain (S29.01), laceration (S29.02), and other injury (S29.09). S29.8 identifies other specified chest injuries, while S29.9 identifies an unspecified chest injury. A seventh character distinguishes an initial encounter, a subsequent encounter, or a lasting effect of the injury.
Questions About This Page
How many billable codes are in the S29 range?
Of the 62 codes in this range, 42 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the S29 range classify?
The range classifies other and unspecified injuries of thorax. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
