DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

S27 Injury of other and unspecified intrathoracic organs

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

S27 is not billable. The category heads 162 billable codes in FY2027, grouped under 9 subdivisions. Its codes take a 7th character, so none is complete with fewer than 7 characters.

Index → code

  • Lacerationlung → S27.339
  • Injuryintrathoracic → S27.9
  • Lacerationdiaphragm → S27.803

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. S27 Injury of other and unspecified intrathoracic organs
Billable codes
162
Subdivisions
9
CC / MCC codes
30 / 24
HCC V28 codes
0
New FY2027
0
Index entries
76

Codes in S27

  1. S27.0
    Traumatic pneumothorax +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
    Excludes1 1

    Excludes1

    • spontaneous pneumothorax (J93.-) J93
  2. S27.1
    Traumatic hemothorax +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  3. S27.2
    Traumatic hemopneumothorax +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  4. S27.3
    Other and unspecified injuries of lung
    Header
  5. S27.30
    Unspecified injury of lung
    Header
  6. S27.301
    Unspecified injury of lung, unilateral +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  7. S27.302
    Unspecified injury of lung, bilateral +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  8. S27.309
    Unspecified injury of lung, unspecified +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  9. S27.31
    Primary blast injury of lung
    Header
    Inclusion terms 1

    Inclusion terms

    • Blast injury of lung NOS
  10. S27.311
    Primary blast injury of lung, unilateral +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  11. S27.312
    Primary blast injury of lung, bilateral +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  12. S27.319
    Primary blast injury of lung, unspecified +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  13. S27.32
    Contusion of lung
    Header
  14. S27.321
    Contusion of lung, unilateral +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  15. S27.322
    Contusion of lung, bilateral +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  16. S27.329
    Contusion of lung, unspecified +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  17. S27.33
    Laceration of lung
    Header
  18. S27.331
    Laceration of lung, unilateral +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  19. S27.332
    Laceration of lung, bilateral +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  20. S27.339
    Laceration of lung, unspecified +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  21. S27.39
    Other injuries of lung
    Header
    Inclusion terms 1

    Inclusion terms

    • Secondary blast injury of lung
  22. S27.391
    Other injuries of lung, unilateral +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  23. S27.392
    Other injuries of lung, bilateral +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  24. S27.399
    Other injuries of lung, unspecified +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  25. S27.4
    Injury of bronchus
    Header
  26. S27.40
    Unspecified injury of bronchus
    Header
  27. S27.401
    Unspecified injury of bronchus, unilateral +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  28. S27.402
    Unspecified injury of bronchus, bilateral +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  29. S27.409
    Unspecified injury of bronchus, unspecified +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  30. S27.41
    Primary blast injury of bronchus
    Header
    Inclusion terms 1

    Inclusion terms

    • Blast injury of bronchus NOS
  31. S27.411
    Primary blast injury of bronchus, unilateral +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  32. S27.412
    Primary blast injury of bronchus, bilateral +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  33. S27.419
    Primary blast injury of bronchus, unspecified +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  34. S27.42
    Contusion of bronchus
    Header
  35. S27.421
    Contusion of bronchus, unilateral +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  36. S27.422
    Contusion of bronchus, bilateral +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  37. S27.429
    Contusion of bronchus, unspecified +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  38. S27.43
    Laceration of bronchus
    Header
  39. S27.431
    Laceration of bronchus, unilateral +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  40. S27.432
    Laceration of bronchus, bilateral +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  41. S27.439
    Laceration of bronchus, unspecified +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  42. S27.49
    Other injury of bronchus
    Header
    Inclusion terms 1

    Inclusion terms

    • Secondary blast injury of bronchus
  43. S27.491
    Other injury of bronchus, unilateral +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  44. S27.492
    Other injury of bronchus, bilateral +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  45. S27.499
    Other injury of bronchus, unspecified +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  46. S27.5
    Injury of thoracic trachea
    Header
  47. S27.50
    Unspecified injury of thoracic trachea +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  48. S27.51
    Primary blast injury of thoracic trachea +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
    Inclusion terms 1

    Inclusion terms

    • Blast injury of thoracic trachea NOS
  49. S27.52
    Contusion of thoracic trachea +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  50. S27.53
    Laceration of thoracic trachea +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  51. S27.59
    Other injury of thoracic trachea +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
    Inclusion terms 1

    Inclusion terms

    • Secondary blast injury of thoracic trachea
  52. S27.6
    Injury of pleura
    Header
  53. S27.60
    Unspecified injury of pleura +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  54. S27.63
    Laceration of pleura +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  55. S27.69
    Other injury of pleura +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  56. S27.8
    Injury of other specified intrathoracic organs
    Header
  57. S27.80
    Injury of diaphragm
    Header
  58. S27.802
    Contusion of diaphragm +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  59. S27.803
    Laceration of diaphragm +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  60. S27.808
    Other injury of diaphragm +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  61. S27.809
    Unspecified injury of diaphragm +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  62. S27.81
    Injury of esophagus (thoracic part)
    Header
  63. S27.812
    Contusion of esophagus (thoracic part) +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  64. S27.813
    Laceration of esophagus (thoracic part) +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  65. S27.818
    Other injury of esophagus (thoracic part) +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  66. S27.819
    Unspecified injury of esophagus (thoracic part) +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  67. S27.89
    Injury of other specified intrathoracic organs
    Header
    Inclusion terms 2

    Inclusion terms

    • Injury of lymphatic thoracic duct
    • Injury of thymus gland
  68. S27.892
    Contusion of other specified intrathoracic organs +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  69. S27.893
    Laceration of other specified intrathoracic organs +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  70. S27.898
    Other injury of other specified intrathoracic organs +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  71. S27.899
    Unspecified injury of other specified intrathoracic organs +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  72. S27.9
    Injury of unspecified intrathoracic organ +7th: A D S
    Needs 7th characterCC AExempt: 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 S27

Excludes2

  • injury of cervical esophagus (S10-S19) S10 S19
  • injury of trachea (cervical) (S10-S19) S10 S19

Code also

  • any associated open wound of thorax (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 S27 defined here

The appropriate 7th character is to be added to each code from category S27

7th characters for S27
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

  • Pneumothorax NOStraumatic → S27.0
  • Hemothorax (bacterial) (nontuberculous)traumatic → S27.1
  • Hemopneumothoraxtraumatic → S27.2
  • Pneumohemothoraxtraumatic → S27.2
  • Contusion (skin surface intact)lung → S27.329
  • Lacerationlung → S27.339
  • Contusion (skin surface intact)diaphragm → S27.802
  • Lacerationdiaphragm → S27.803
  • Contusion (skin surface intact)esophagus (thoracic) → S27.812
  • Abrasionesophagus (thoracic) → S27.818
  • Wound, openesophagus (thoracic) → S27.819
  • Injuryintrathoracic → S27.9
  • Injuryintrathoracicpneumothorax → S27.0
  • Injuryintrathoracichemothorax → S27.1
  • Hemothorax (bacterial) (nontuberculous)traumaticwith pneumothorax → S27.2
  • Injuryintrathoracichemopneumothorax → S27.2
  • Pneumothorax NOStraumaticwith hemothorax → S27.2
  • Injuryintrathoraciclung → S27.309
  • Contusion (skin surface intact)lungunilateral → S27.321
  • Contusion (skin surface intact)lungbilateral → S27.322
  • Lacerationlungunilateral → S27.331
  • Lacerationlungbilateral → S27.332
  • Injuryintrathoracicbronchus → S27.409
  • Injuryintrathoracictrachea, thoracic → S27.50
  • Contusion (skin surface intact)trachea (cervical)thoracic → S27.52
  • Injuryintrathoracicpleura → S27.60
  • Injuryintrathoracicdiaphragm → S27.809
  • Wound, openesophagus (thoracic)laceration → S27.813
  • Punctureesophagusthoracic → S27.818
  • Wound, openesophagus (thoracic)specified type NEC → S27.818
  • Injuryintrathoracicesophagus (thoracic) → S27.819
  • Injuryintrathoracicspecified organ NEC → S27.899
  • Injuryintrathoraciclungunilateral → S27.301
  • Injuryintrathoraciclungbilateral → S27.302
  • Injuryintrathoraciclungblast injury (primary) → S27.319
  • Injuryintrathoraciclungcontusion → S27.329
  • Injuryintrathoraciclunglaceration → S27.339
  • Injuryintrathoraciclungspecified type NEC → S27.399
  • Injuryintrathoracicbronchusunilateral → S27.401
  • Injuryintrathoracicbronchusbilateral → S27.402

36 more, longer entries are not listed; the search box finds them by word.

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

Hierarchy