Primary blast injury of right ear, subsequent encounter

This code signifies a primary blast injury affecting the right ear, indicating damage directly caused by the overpressure wave of an explosion. This type of injury can manifest as tympanic membrane rupture, ossicular chain disruption, or inner ear damage. The "D" seventh character specifies that this is a subsequent encounter for care after the initial treatment phase.

Use this code when a patient presents for follow-up care, such as wound checks, medication adjustments, or rehabilitation, for a primary blast injury to their right ear. Documentation should clearly state "primary blast injury," specify the "right ear," and indicate that the encounter is for ongoing treatment or recovery, not the initial acute phase.

• Ensure documentation explicitly states "primary blast injury" to differentiate from other ear injuries.
• Verify the laterality (right ear) is clearly documented; do not assume.
• The "D" seventh character is crucial for subsequent encounters; avoid using "A" (initial) or "S" (sequela) unless clinically appropriate.