Y37.A2 — High level blast overpressure in military operations
Y37.A2 is a non-billable header ICD-10-CM code for high level blast overpressure in military operations. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.
This code requires a 7th character
The appropriate 7th character is to be added to each code from category Y37
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- High level blast overpressure due to explosion in military operations
- HLB overpressure in military operations
Risk adjustment
Y37.A2 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
How Y37.A2 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to Y37.A2.
- Military operations›HLB overpressure
- Military operations›blast overpressure›high level(due to explosion)
Code to one of these instead Y37.A2
3 child codes. Green means billable.
Related codes at this level
Codes that share Y37.A. If Y37.A2 is not quite right, the correct code is usually one of these.
Questions about Y37.A2
- Is Y37.A2 a billable ICD-10-CM code?
- No. Y37.A2 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does Y37.A2 sit in the tabular list?
- External causes of morbidity (V00-Y99), in the block Legal intervention, operations of war, military operations, and terrorism (Y35-Y38).