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  5. Other and unspecified injuries of thorax (S29)

Other and unspecified injuries of thorax (S29)

ICD-10 code S29 covers a variety of other and unspecified injuries to the thorax, including muscles, tendons, and associated structures. These codes are used in medical coding to specify strains, lacerations, unspecified injuries, or other trauma to different parts of the chest wall.

The ICD-10 code for injury of muscle and tendon at thorax level (S29.0) includes detailed subcodes representing injuries to the front, back, or unspecified wall of the thorax. For example, unspecified injuries to the posterior chest wall appear under S29.002, sometimes described as traumatic injury of skeletal muscle of the back chest wall. Strains of thoracic muscles, such as the pectoral or trapezius muscles, are coded starting at S29.01, with common synonyms like strain of pectoral muscle or strain of trapezius muscle linked directly to these codes (e.g., S29.011 for the front wall). Lacerations and open wounds of thoracic muscles and tendons also have specific codes, such as S29.02, covering injuries like laceration of chest wall muscles or open wounds of the pectoral muscle.

Other specified injuries (S29.8) include rarer trauma such as degloving injuries of the chest wall or foreign bodies like wood splinters or metal in the thorax. Unspecified thoracic injuries (S29.9), which may be referenced as chest injuries, blunt injuries, multiple chest injuries, or even breast hematoma, are also part of this coding section. These detailed codes help clarify the specific location and nature of thoracic injuries for accurate medical reporting and treatment documentation.

  • 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 Other and unspecified injuries of thorax
        • S29.0 Injury of muscle and tendon at thorax level
        • S29.00 Unspecified injury of muscle and tendon of thorax
        • S29.001 Unspecified injury of muscle and tendon of front wall of thorax
        • 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 thorax
        • 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 thorax
        • 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 thorax
        • S29.011 Strain of muscle and tendon of front wall of thorax
        • 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 thorax
        • 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 thorax
        • 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 thorax
        • S29.021 Laceration of muscle and tendon of front wall of thorax
        • 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 thorax
        • 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 thorax
        • 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 thorax
        • S29.091 Other injury of muscle and tendon of front wall of thorax
        • 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 thorax
        • 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 thorax
        • 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 thorax
        • 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 thorax
        • S29.9XXA Unspecified injury of thorax, initial encounter
        • S29.9XXD Unspecified injury of thorax, subsequent encounter
        • S29.9XXS Unspecified injury of thorax, sequela

Instructional Notations

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