ICD-10-CM > V00-Y99 > Y35-Y38 > Y36 > Y36.A > Y36.A2 Y36.A2 High level blast overpressure in war operations Non-Billable/Non-Specific Applicable To High level blast overpressure due to explosion in war operationsHLB overpressure in war operations Codes Y36.A2XA..., initial encounterY36.A2XD..., subsequent encounterY36.A2XS..., sequela