T70.2 Other and unspecified effects of high altitudeNon-billable header with 2 child codes.
T71 Asphyxiation ("anoxia due to high altitude (T70.2)")T70.0XXS Otitic barotrauma, sequelaT70.1 Sinus barotraumaT70.1XXA Sinus barotrauma, initial encounterT70.1XXD Sinus barotrauma, subsequent encounterT70.1XXS Sinus barotrauma, sequelaT70.2 Other and unspecified effects of high altitude (this code)T70.20 Unspecified effects of high altitudeT70.20XA Unspecified effects of high altitude, initial encounterT70.20XD Unspecified effects of high altitude, subsequent encounterT70.20XS Unspecified effects of high altitude, sequelaT70.29 Other effects of high altitude