Primary blast injury of unsp part of sm int, sequela

This code signifies a long-term or residual health problem affecting the small intestine, specifically caused by the initial impact of a primary blast event. It indicates that the direct force of the blast, rather than penetrating trauma or burns, led to the original injury, and the patient is now experiencing ongoing effects. The exact location within the small intestine is not specified.

Apply this code when documenting a patient presenting with chronic or persistent symptoms, complications, or conditions directly attributable to a primary blast injury of the small intestine that occurred in the past. This would include follow-up visits for ongoing management of blast-related intestinal dysfunction, adhesions, or other sequelae. Do not use for acute blast injuries.

• Always use in conjunction with an external cause code (V00-Y99) to specify the circumstances of the blast injury.
• Ensure documentation clearly distinguishes between acute blast injury and the long-term sequelae.
• Verify that the injury mechanism was a primary blast (e.g., overpressure wave), not secondary (projectiles), tertiary (impact with objects), or quaternary (burns, toxic exposures).