DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

T31 Burns classified according to extent of body surface involved

  • Header · not billable

T31 is not billable. The category heads 55 billable codes in FY2027, grouped under 10 subdivisions.

Index → code

  • Burn (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal)extent (percentage of body surface)10-19 percent → T31.10
  • Burn (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal)extent (percentage of body surface)20-29 percent → T31.20
  • Burn (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal)extent (percentage of body surface)30-39 percent → T31.30

Where it sits

  1. Chapter 19 Injury, poisoning and certain other consequences of external causes (S00-T88)
  2. T30-T32 Burns and corrosions of multiple and unspecified body regions (T30-T32)
  3. T31 Burns classified according to extent of body surface involved
Billable codes
55
Subdivisions
10
CC / MCC codes
10 / 44
HCC V28 codes
45
New FY2027
0
Index entries
119

Codes in T31

  1. T31.0
    Burns involving less than 10% of body surface
    Billable
  2. T31.1
    Burns involving 10-19% of body surface
    Header
  3. T31.10
    Burns involving 10-19% of body surface with 0% to 9% third degree burns
    BillableCC
    Inclusion terms 1

    Inclusion terms

    • Burns involving 10-19% of body surface NOS
  4. T31.11
    Burns involving 10-19% of body surface with 10-19% third degree burns
    BillableCC385
  5. T31.2
    Burns involving 20-29% of body surface
    Header
  6. T31.20
    Burns involving 20-29% of body surface with 0% to 9% third degree burns
    BillableCC
    Inclusion terms 1

    Inclusion terms

    • Burns involving 20-29% of body surface NOS
  7. T31.21
    Burns involving 20-29% of body surface with 10-19% third degree burns
    BillableMCC385
  8. T31.22
    Burns involving 20-29% of body surface with 20-29% third degree burns
    BillableMCC385
  9. T31.3
    Burns involving 30-39% of body surface
    Header
  10. T31.30
    Burns involving 30-39% of body surface with 0% to 9% third degree burns
    BillableCC
    Inclusion terms 1

    Inclusion terms

    • Burns involving 30-39% of body surface NOS
  11. T31.31
    Burns involving 30-39% of body surface with 10-19% third degree burns
    BillableMCC385
  12. T31.32
    Burns involving 30-39% of body surface with 20-29% third degree burns
    BillableMCC385
  13. T31.33
    Burns involving 30-39% of body surface with 30-39% third degree burns
    BillableMCC385
  14. T31.4
    Burns involving 40-49% of body surface
    Header
  15. T31.40
    Burns involving 40-49% of body surface with 0% to 9% third degree burns
    BillableCC
    Inclusion terms 1

    Inclusion terms

    • Burns involving 40-49% of body surface NOS
  16. T31.41
    Burns involving 40-49% of body surface with 10-19% third degree burns
    BillableMCC385
  17. T31.42
    Burns involving 40-49% of body surface with 20-29% third degree burns
    BillableMCC385
  18. T31.43
    Burns involving 40-49% of body surface with 30-39% third degree burns
    BillableMCC385
  19. T31.44
    Burns involving 40-49% of body surface with 40-49% third degree burns
    BillableMCC385
  20. T31.5
    Burns involving 50-59% of body surface
    Header
  21. T31.50
    Burns involving 50-59% of body surface with 0% to 9% third degree burns
    BillableCC
    Inclusion terms 1

    Inclusion terms

    • Burns involving 50-59% of body surface NOS
  22. T31.51
    Burns involving 50-59% of body surface with 10-19% third degree burns
    BillableMCC385
  23. T31.52
    Burns involving 50-59% of body surface with 20-29% third degree burns
    BillableMCC385
  24. T31.53
    Burns involving 50-59% of body surface with 30-39% third degree burns
    BillableMCC385
  25. T31.54
    Burns involving 50-59% of body surface with 40-49% third degree burns
    BillableMCC385
  26. T31.55
    Burns involving 50-59% of body surface with 50-59% third degree burns
    BillableMCC385
  27. T31.6
    Burns involving 60-69% of body surface
    Header
  28. T31.60
    Burns involving 60-69% of body surface with 0% to 9% third degree burns
    BillableCC
    Inclusion terms 1

    Inclusion terms

    • Burns involving 60-69% of body surface NOS
  29. T31.61
    Burns involving 60-69% of body surface with 10-19% third degree burns
    BillableMCC385
  30. T31.62
    Burns involving 60-69% of body surface with 20-29% third degree burns
    BillableMCC385
  31. T31.63
    Burns involving 60-69% of body surface with 30-39% third degree burns
    BillableMCC385
  32. T31.64
    Burns involving 60-69% of body surface with 40-49% third degree burns
    BillableMCC385
  33. T31.65
    Burns involving 60-69% of body surface with 50-59% third degree burns
    BillableMCC385
  34. T31.66
    Burns involving 60-69% of body surface with 60-69% third degree burns
    BillableMCC385
  35. T31.7
    Burns involving 70-79% of body surface
    Header
  36. T31.70
    Burns involving 70-79% of body surface with 0% to 9% third degree burns
    BillableCC
    Inclusion terms 1

    Inclusion terms

    • Burns involving 70-79% of body surface NOS
  37. T31.71
    Burns involving 70-79% of body surface with 10-19% third degree burns
    BillableMCC385
  38. T31.72
    Burns involving 70-79% of body surface with 20-29% third degree burns
    BillableMCC385
  39. T31.73
    Burns involving 70-79% of body surface with 30-39% third degree burns
    BillableMCC385
  40. T31.74
    Burns involving 70-79% of body surface with 40-49% third degree burns
    BillableMCC385
  41. T31.75
    Burns involving 70-79% of body surface with 50-59% third degree burns
    BillableMCC385
  42. T31.76
    Burns involving 70-79% of body surface with 60-69% third degree burns
    BillableMCC385
  43. T31.77
    Burns involving 70-79% of body surface with 70-79% third degree burns
    BillableMCC385
  44. T31.8
    Burns involving 80-89% of body surface
    Header
  45. T31.80
    Burns involving 80-89% of body surface with 0% to 9% third degree burns
    BillableCC
    Inclusion terms 1

    Inclusion terms

    • Burns involving 80-89% of body surface NOS
  46. T31.81
    Burns involving 80-89% of body surface with 10-19% third degree burns
    BillableMCC385
  47. T31.82
    Burns involving 80-89% of body surface with 20-29% third degree burns
    BillableMCC385
  48. T31.83
    Burns involving 80-89% of body surface with 30-39% third degree burns
    BillableMCC385
  49. T31.84
    Burns involving 80-89% of body surface with 40-49% third degree burns
    BillableMCC385
  50. T31.85
    Burns involving 80-89% of body surface with 50-59% third degree burns
    BillableMCC385
  51. T31.86
    Burns involving 80-89% of body surface with 60-69% third degree burns
    BillableMCC385
  52. T31.87
    Burns involving 80-89% of body surface with 70-79% third degree burns
    BillableMCC385
  53. T31.88
    Burns involving 80-89% of body surface with 80-89% third degree burns
    BillableMCC385
  54. T31.9
    Burns involving 90% or more of body surface
    Header
  55. T31.90
    Burns involving 90% or more of body surface with 0% to 9% third degree burns
    BillableCC
    Inclusion terms 1

    Inclusion terms

    • Burns involving 90% or more of body surface NOS
  56. T31.91
    Burns involving 90% or more of body surface with 10-19% third degree burns
    BillableMCC385
  57. T31.92
    Burns involving 90% or more of body surface with 20-29% third degree burns
    BillableMCC385
  58. T31.93
    Burns involving 90% or more of body surface with 30-39% third degree burns
    BillableMCC385
  59. T31.94
    Burns involving 90% or more of body surface with 40-49% third degree burns
    BillableMCC385
  60. T31.95
    Burns involving 90% or more of body surface with 50-59% third degree burns
    BillableMCC385
  61. T31.96
    Burns involving 90% or more of body surface with 60-69% third degree burns
    BillableMCC385
  62. T31.97
    Burns involving 90% or more of body surface with 70-79% third degree burns
    BillableMCC385
  63. T31.98
    Burns involving 90% or more of body surface with 80-89% third degree burns
    BillableMCC385
  64. T31.99
    Burns involving 90% or more of body surface with 90% or more third degree burns
    BillableMCC385

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.

Instructions

At T31

Notes

  • This category is to be used as the primary code only when the site of the burn is unspecified. It should be used as a supplementary code with categories T20-T25 when the site is specified. T20 T25

Notes that also apply

Instructions for the group T20-T32 (Includes 10, Excludes2 3): printed on the chapter 19 page.

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

Index entries

  • Burn (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal)extent (percentage of body surface)less than 10 percent → T31.0
  • Burn (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal)unspecified site with extent of body surface involved specifiedless than 10 percent → T31.0
  • Burn (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal)extent (percentage of body surface)10-19 percent → T31.10
  • Burn (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal)unspecified site with extent of body surface involved specified10-19 percent (0-9 percent third degree) → T31.10
  • Burn (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal)extent (percentage of body surface)20-29 percent → T31.20
  • Burn (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal)unspecified site with extent of body surface involved specified20-29 percent (0-9 percent third degree) → T31.20
  • Burn (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal)extent (percentage of body surface)30-39 percent → T31.30
  • Burn (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal)unspecified site with extent of body surface involved specified30-39 percent (0-9 percent third degree) → T31.30
  • Burn (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal)extent (percentage of body surface)40-49 percent → T31.40
  • Burn (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal)unspecified site with extent of body surface involved specified40-49 percent (0-9 percent third degree) → T31.40
  • Burn (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal)extent (percentage of body surface)50-59 percent → T31.50
  • Burn (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal)unspecified site with extent of body surface involved specified50-59 percent (0-9 percent third degree) → T31.50
  • Burn (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal)extent (percentage of body surface)60-69 percent → T31.60
  • Burn (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal)unspecified site with extent of body surface involved specified60-69 percent (0-9 percent third degree) → T31.60
  • Burn (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal)extent (percentage of body surface)70-79 percent → T31.70
  • Burn (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal)unspecified site with extent of body surface involved specified70-79 percent (0-9 percent third degree) → T31.70
  • Burn (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal)extent (percentage of body surface)80-89 percent → T31.80
  • Burn (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal)unspecified site with extent of body surface involved specified80-89 percent (0-9 percent third degree) → T31.80
  • Burn (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal)extent (percentage of body surface)90 percent or more → T31.90
  • Burn (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal)unspecified site with extent of body surface involved specified90 percent or more (0-9 percent third degree) → T31.90
  • Burn (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal)extent (percentage of body surface)10-19 percentwith 0-9 percent third degree burns → T31.10
  • Burn (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal)extent (percentage of body surface)10-19 percentwith 10-19 percent third degree burns → T31.11
  • Burn (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal)unspecified site with extent of body surface involved specified10-19 percent (0-9 percent third degree)with 10-19 percent third degree → T31.11
  • Burn (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal)extent (percentage of body surface)20-29 percentwith 0-9 percent third degree burns → T31.20
  • Burn (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal)extent (percentage of body surface)20-29 percentwith 10-19 percent third degree burns → T31.21
  • Burn (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal)extent (percentage of body surface)20-29 percentwith 20-29 percent third degree burns → T31.22
  • Burn (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal)extent (percentage of body surface)30-39 percentwith 0-9 percent third degree burns → T31.30
  • Burn (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal)extent (percentage of body surface)30-39 percentwith 10-19 percent third degree burns → T31.31
  • Burn (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal)extent (percentage of body surface)30-39 percentwith 20-29 percent third degree burns → T31.32
  • Burn (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal)extent (percentage of body surface)30-39 percentwith 30-39 percent third degree burns → T31.33
  • Burn (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal)extent (percentage of body surface)40-49 percentwith 0-9 percent third degree burns → T31.40
  • Burn (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal)extent (percentage of body surface)40-49 percentwith 10-19 percent third degree burns → T31.41
  • Burn (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal)extent (percentage of body surface)40-49 percentwith 20-29 percent third degree burns → T31.42
  • Burn (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal)extent (percentage of body surface)40-49 percentwith 30-39 percent third degree burns → T31.43
  • Burn (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal)extent (percentage of body surface)40-49 percentwith 40-49 percent third degree burns → T31.44
  • Burn (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal)extent (percentage of body surface)50-59 percentwith 0-9 percent third degree burns → T31.50
  • Burn (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal)extent (percentage of body surface)50-59 percentwith 10-19 percent third degree burns → T31.51
  • Burn (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal)extent (percentage of body surface)50-59 percentwith 20-29 percent third degree burns → T31.52
  • Burn (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal)extent (percentage of body surface)50-59 percentwith 30-39 percent third degree burns → T31.53
  • Burn (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal)extent (percentage of body surface)50-59 percentwith 40-49 percent third degree burns → T31.54

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