Other coma, without Glasgow, or w/part score, in the field

This code signifies a state of unconsciousness, or coma, where the patient's Glasgow Coma Scale (GCS) score is either completely absent from the medical record or only partially documented. The crucial element is that this assessment occurred in an out-of-hospital setting, such as during an emergency medical technician (EMT) or ambulance transport.

Use this code when a patient presents with a coma and the only GCS information available is from pre-hospital care, and that GCS is either not recorded or incomplete. This is common in emergency situations where a full neurological assessment may not be feasible or fully documented by first responders. Documentation from EMTs, paramedics, or ambulance reports indicating a comatose state without a complete GCS score supports its use.

• Do not use if a complete GCS score is documented by hospital staff upon arrival, even if pre-hospital GCS was partial or absent.
• Distinguish from codes for specific types of coma (e.g., diabetic coma, hepatic coma) if the underlying cause is known and documented.
• Always review the entire medical record, especially pre-hospital documentation, to determine the completeness and source of GCS scoring.