Unsp injury of axillary artery, unsp side, init encntr

This code signifies an injury to the axillary artery where the specific nature of the trauma (e.g., laceration, contusion, rupture) is not documented. It also indicates that the affected side (left or right) is not specified in the medical record. This code is used for the initial treatment of such an injury.

This code is appropriate when a patient presents with an axillary artery injury, but the physician documentation lacks detail regarding the type of injury or the specific side involved. This often occurs in emergency department settings or initial assessments where full diagnostic workup is pending. It should only be assigned for the very first encounter related to this specific injury.

• Only use this code when documentation explicitly states "unspecified" for both the injury type and the side, or when no further detail is available.
• Avoid using this code if a more specific injury type (e.g., S45.01- for laceration) or side (e.g., S45.001- for right side) is documented.
• Remember the "A" seventh character denotes an initial encounter; subsequent care for this injury will require a different seventh character.