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ICD-10-CM 2027

ICD-10 code for Dysbarism

T70.3

Caisson disease [decompression sickness]

Header — needs a more specific code

From the official ICD-10-CM alphabetic index entry “Dysbarism”. Page updated September 29, 2026.

About coding Dysbarism

The ICD-10-CM code for Dysbarism is T70.3 (Caisson disease [decompression sickness]).

Within T70 (effects of air pressure and water pressure), T70.3 is specifically for Caisson disease [decompression sickness]. Related codes cover otitic barotrauma (T70.0), sinus barotrauma (T70.1), other and unspecified effects of high altitude (T70.2), effects of high-pressure fluids (T70.4), other effects of air pressure and water pressure (T70.8) and effect of air pressure and water pressure, unspecified (T70.9).

Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Common questions about Dysbarism ICD-10 codes

What is the ICD-10 code for Dysbarism?

T70.3 — Caisson disease [decompression sickness] (a header code; report a more specific subcode).

Is T70.3 billable?

No. T70.3 is a header code. Report one of its more specific subcodes instead.