ICD-10-CM › S00-T88 › T66-T78 › T70 Effects of air pressure and water pressure › T70.4

T70.4

Effects of high-pressure fluids

Not billableICD-10-CM diagnosis code.

This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.

A category header for its whole life, FY2016 onwards. It has never been valid for submission on its own.

Submit one of these 3 more specific codes instead:

  • T70.4XXA Effects of high-pressure fluids, initial encounter
  • T70.4XXD Effects of high-pressure fluids, subsequent encounter
  • T70.4XXS Effects of high-pressure fluids, sequela

This code requires a seventh character. See the rule below.

What has happened to this code

Every change the publisher made, from 2014 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.

  1. FY2014 Added to the draft code set draft Effects of high-pressure fluids

Official coding rules

Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.

Inherited from T70 Effects of air pressure and water pressure

Seventh character required

  • The appropriate 7th character is to be added to each code from category T70

Inherited from the T66-T78 section Other and unspecified effects of external causes (T66-T78)

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-)

How CDC's index refers to this code

Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.

Codes in the same group

CodeDescriptionStatus
T70.0 Otitic barotrauma Not billable
T70.1 Sinus barotrauma Not billable
T70.2 Other and unspecified effects of high altitude Not billable
T70.3 Caisson disease [decompression sickness] Not billable
T70.8 Other effects of air pressure and water pressure Not billable
T70.9 Effect of air pressure and water pressure, unspecified Not billable