All ICD10 Codes
T70Non-billable

Effects of air pressure and water pressure

Injury, Poisoning and Certain Other Consequences of External Causes·Other and unspecified effects of external causes (T66-T78)·category·FY 2026

Use a more specific code (6 billable, 1 non-billable)
T70.0Otitic barotraumaT70.1Sinus barotraumaT70.2Other and unspecified effects of high altitudehas subcodesT70.3Caisson disease [decompression sickness]T70.4Effects of high-pressure fluidsT70.8Other effects of air pressure and water pressureT70.9Effect of air pressure and water pressure, unspecified

CH19 Parent Instructions

Excludes2(Not included here. Code separately if applicable.)
Use Additional Code
  • code to identify any retained foreign body, if applicable (Z18.-)

T66-T78 Parent Instructions

Code Also
  • , if applicable, place of occurrence, such as:
  • highway rest stop (Y92.523)
  • school (private) (public) (state) as the place of occurrence of the external cause (Y92.21-)
  • service areas as the place of occurrence of the external cause (Y92.52-)
  • single-family non-institutional (private) house as the place of occurrence of the external cause (Y92.01-)
  • transport vehicle as the place of occurrence of the external cause (Y92.81-)

Clinical Hierarchy

BillableHas subcodes
CH19Injury, poisoning and certain other consequences of external causes (S00-T88)
T66-T78Other and unspecified effects of external causes (T66-T78)
T70Effects of air pressure and water pressureNot billable
T70.0Otitic barotraumaBillable
T70.1Sinus barotraumaBillable
T70.2Other and unspecified effects of high altitudeSubcodes
T70.3Caisson disease [decompression sickness]Billable
T70.4Effects of high-pressure fluidsBillable
T70.8Other effects of air pressure and water pressureBillable
T70.9Effect of air pressure and water pressure, unspecifiedBillable

MS-DRG Classification

2026

No direct MS-DRG triggers identified.