DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

S29 Other and unspecified injuries of thorax

  • Header · not billable
  • Codes take a 7th character

S29 is not billable. The category heads 42 billable codes in FY2027, grouped under 3 subdivisions. Its codes take a 7th character, so none is complete with fewer than 7 characters.

Index → code

  • Injurybreast NOS → S29.9
  • Injurysternal region → S29.9
  • Injurythorax, thoracic → S29.9

Where it sits

  1. Chapter 19 Injury, poisoning and certain other consequences of external causes (S00-T88)
  2. S20-S29 Injuries to the thorax (S20-S29)
  3. S29 Other and unspecified injuries of thorax
Billable codes
42
Subdivisions
3
CC / MCC codes
2 / 0
HCC V28 codes
0
New FY2027
0
Index entries
20

Codes in S29

  1. S29.0
    Injury of muscle and tendon at thorax level
    Header
  2. S29.00
    Unspecified injury of muscle and tendon of thorax
    Header
  3. S29.001
    Unspecified injury of muscle and tendon of front wall of thorax +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  4. S29.002
    Unspecified injury of muscle and tendon of back wall of thorax +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  5. S29.009
    Unspecified injury of muscle and tendon of unspecified wall of thorax +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  6. S29.01
    Strain of muscle and tendon of thorax
    Header
  7. S29.011
    Strain of muscle and tendon of front wall of thorax +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  8. S29.012
    Strain of muscle and tendon of back wall of thorax +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  9. S29.019
    Strain of muscle and tendon of unspecified wall of thorax +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  10. S29.02
    Laceration of muscle and tendon of thorax
    Header
  11. S29.021
    Laceration of muscle and tendon of front wall of thorax +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  12. S29.022
    Laceration of muscle and tendon of back wall of thorax +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  13. S29.029
    Laceration of muscle and tendon of unspecified wall of thorax +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  14. S29.09
    Other injury of muscle and tendon of thorax
    Header
  15. S29.091
    Other injury of muscle and tendon of front wall of thorax +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  16. S29.092
    Other injury of muscle and tendon of back wall of thorax +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  17. S29.099
    Other injury of muscle and tendon of unspecified wall of thorax +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  18. S29.8
    Other specified injuries of thorax +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  19. S29.9
    Unspecified injury of thorax +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters

CC/MCC: as a secondary diagnosis, unless the principal diagnosis is on the code’s PDX exclusion list (MS-DRG v44 Appendix C; list on the code card).

Sources of each column. Rows marked +7th need a 7th character: pick one to build the full code; its code card has its own flags.

Instructions

At S29

Code also

  • any associated open wound (S21.-) S21

Notes that also apply

Block S20-S29 instructions (Includes 3, Excludes2 11): printed on the block page.

Chapter 19 instructions (Notes 2, Excludes2 2, Use additional code 1): printed on the chapter 19 page.

7th characters

7th characters for S29 defined here

The appropriate 7th character is to be added to each code from category S29

7th characters for S29
7thMeaning (NCHS)
Ainitial encounter
Dsubsequent encounter
Ssequela

A code that takes a 7th character is invalid without it; the placeholder X fills a code shorter than 6 characters (Official Guidelines I.A.5). How 7th characters work.

Index entries

  • Injurybreast NOS → S29.9
  • Injurycostal region NEC → S29.9
  • Injurycostochondral NEC → S29.9
  • Injurymidthoracic region NOS → S29.9
  • Injurysternal region → S29.9
  • Injurythorax, thoracic → S29.9
  • Injurymuscle (and fascia) (and tendon)thorax (level) → S29.009
  • Injurythorax, thoracicexternal (wall) → S29.9
  • Injurymuscle (and fascia) (and tendon)thorax (level)front wall → S29.001
  • Injurymuscle (and fascia) (and tendon)thorax (level)back wall → S29.002
  • Injurymuscle (and fascia) (and tendon)thorax (level)strain → S29.019
  • Injurymuscle (and fascia) (and tendon)thorax (level)laceration → S29.029
  • Injurymuscle (and fascia) (and tendon)thorax (level)specified type NEC → S29.099
  • Injurythorax, thoracicexternal (wall)specified NEC → S29.8
  • Injurymuscle (and fascia) (and tendon)thorax (level)strainfront wall → S29.011
  • Injurymuscle (and fascia) (and tendon)thorax (level)strainback wall → S29.012
  • Injurymuscle (and fascia) (and tendon)thorax (level)lacerationfront wall → S29.021
  • Injurymuscle (and fascia) (and tendon)thorax (level)lacerationback wall → S29.022
  • Injurymuscle (and fascia) (and tendon)thorax (level)specified type NECfront wall → S29.091
  • Injurymuscle (and fascia) (and tendon)thorax (level)specified type NECback wall → S29.092

NCHS Alphabetic Index. Index first, then the Tabular List.

Hierarchy