DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

S00-T88 · FY2027

Chapter 19 Injury, poisoning and certain other consequences of external causes (S00-T88)

Chapter 19 holds 171 categories in 22 blocks, with 41,187 billable codes in FY2027, 60 of them new this year.

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Chapters

Blocks
22
Categories
171
Billable codes
41,187
New FY2027
60
Instructions
5

Blocks and categories

T07-T88 Injury, poisoning and certain other consequences of external causes (T07-T88)

T20-T32 Burns and corrosions (T20-T32)

Chapter instructions

Notes

  • Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
  • The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.

Excludes2

  • birth trauma (P10-P15) P10 P15
  • obstetric trauma (O70-O71) O70 O71

Use additional code

  • code to identify any retained foreign body, if applicable (Z18.-) Z18

Instructions for T20-T32 Burns and corrosions (T20-T32)

Printed as in the Tabular List. They apply to every block of the group.

Includes

  • burns (thermal) from electrical heating appliances
  • burns (thermal) from electricity
  • burns (thermal) from flame
  • burns (thermal) from friction
  • burns (thermal) from hot air and hot gases
  • burns (thermal) from hot objects
  • burns (thermal) from lightning
  • burns (thermal) from radiation
  • chemical burn [corrosion] (external) (internal)
  • scalds

Excludes2

  • erythema [dermatitis] ab igne (L59.0) L59.0
  • radiation-related disorders of the skin and subcutaneous tissue (L55-L59) L55 L59
  • sunburn (L55.-) L55