Block · Chapter 19
T66-T78 Other and unspecified effects of external causes (T66-T78)
Block T66-T78 groups 11 categories with 456 billable codes in FY2027.
Where it sits
- Chapter 19 Injury, poisoning and certain other consequences of external causes (S00-T88)
- T66-T78 Other and unspecified effects of external causes (T66-T78)
Neighbouring blocks
- Categories
- 11
- Billable codes
- 456
- CC codes
- 89
- MCC codes
- 0
- HCC V28 codes
- 8
- New FY2027
- 0
Categories in T66-T78
Index main terms
- Asphyxia, asphyxiation (by) → T71, T75 (41 entries)
- Maltreatment → T74, T76 (40 entries)
- Effect, adverse → T66, T69, T70, T73, T75, T78 (34 entries)
- Shock → T75, T78 (27 entries)
- Allergy, allergic (reaction) (to) → T78 (26 entries)
- Osteonecrosis → T70 (22 entries)
- Heat (effects) → T67 (21 entries)
- Sickness → T66, T70, T75 (18 entries)
- Syndrome → T67, T69, T70, T74, T75, T78 (11 entries)
- Disease, diseased → T67, T70, T75, T78 (10 entries)
- Edema, edematous (infectious) (pitting) (toxic) → T67, T70, T75, T78 (10 entries)
- Cramp(s) → T67, T75 (8 entries)
- Exploitation → T74, T76 (8 entries)
- Cold → T69 (7 entries)
- Exhaustion, exhaustive (physical NEC) → T67, T69, T73 (6 entries)
+124 more main terms; the search box finds them by word.
Block instructions
Code also
- , if applicable, place of occurrence, such as:
- highway rest stop (Y92.523) Y92.523
- school (private) (public) (state) as the place of occurrence of the external cause (Y92.21-) Y92.21
- service areas as the place of occurrence of the external cause (Y92.52-) Y92.52
- single-family non-institutional (private) house as the place of occurrence of the external cause (Y92.01-) Y92.01
- transport vehicle as the place of occurrence of the external cause (Y92.81-) Y92.81
Notes that also apply
Chapter 19 instructions (Notes 2, Excludes2 2, Use additional code 1): printed on the chapter 19 page.