All ICD10 Codes
T70Not billable, use a more specific code below

Effects of air pressure and water pressure

In Other and unspecified effects of external causes (T66-T78), chapter 19: Injury, Poisoning and Certain Other Consequences of External Causes

24 billable codes under T70: 1 is a CC; none map to an HCC.A CC or MCC (major CC) is a secondary diagnosis that raises the MS-DRG payment.

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Instructional notes

Also applies, from Other and unspecified effects of external causes (T66-T78)

These notes sit on T66-T78 and apply to every code under it, including T70.

Code also: add a code for this too, order depends on the encounter

  • 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-)

Official coding guidelines

From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.

Covers 7th character use and coding of injuries, fractures, burns, drug and toxic effects, abuse and neglect, and complications of care (S00-T88).

Read Section I.C.19 (page 77)

All codes under T70

T70 can't be used on a claim. Pick a billable code below; grey headings group them.

T70 MS-DRGs

As the principal diagnosis, the billable codes under T70 group to MS-DRG 922, 923, 949, 950, 152, or 153 (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.

About the condition

Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.

Barotrauma

Barotrauma means injury to your body because of changes in barometric (air) or water pressure. One common type happens to your ear. A change in altitude may cause your ears to hurt. This can happen if you are flying in an airplane, driving in the mountains, or scuba diving. Divers can also get decompression sickness, which affects the whole body.

Read more about barotrauma on MedlinePlus

Code history

Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.