Primary blast injury of lung, unilateral, sequela

This code signifies a long-term complication or residual effect stemming from a primary blast injury that affected only one lung. Such injuries are typically caused by the direct impact of a blast wave on the body, leading to damage like contusions, hemorrhage, or barotrauma within the lung tissue. The "sequela" designation indicates that the acute injury has passed, and the patient is now experiencing ongoing issues related to that past trauma.

Apply this code when documenting a patient presenting with chronic respiratory problems, pulmonary fibrosis, persistent pain, or other lasting impairments directly attributable to a primary blast injury sustained in one lung. This is appropriate for follow-up encounters where the focus is on managing these long-term consequences, rather than the initial acute treatment.

• Ensure documentation clearly links the current condition to a past primary blast injury of a single lung.
• Do not use for acute blast injuries; this code is specifically for sequelae.
• Code any specific manifestations of the sequela (e.g., chronic respiratory failure) in addition to this code.