Machinery accident on board merchant ship, sequela

This code indicates a health condition or injury that is a residual effect or complication stemming from a past accident involving machinery on a merchant ship. The initial injury occurred at an earlier time, and the patient is now presenting with a long-term consequence of that event.

Apply this code when documenting a patient's current medical condition directly attributable to a prior machinery accident that took place on a commercial vessel. This would include chronic pain, disability, scarring, or organ damage that developed or persisted as a result of the original incident.

• Always use this code as a secondary diagnosis, following the code for the specific sequela being treated.
• Ensure documentation clearly links the current condition to the past machinery accident on a merchant ship.
• Do not use this code for acute injuries from a recent accident; use the acute injury code with an initial encounter seventh character.