Injury of cervical sympathetic nerves, subsequent encounter

This code signifies an injury to the sympathetic nerve fibers located in the cervical region of the spine, occurring during a subsequent encounter for care. This type of injury can lead to various autonomic dysfunctions, such as Horner's syndrome, affecting the eye and face on the injured side. The "D" seventh character indicates that the patient is receiving routine care during the healing or recovery phase.

Use this code for follow-up visits, rehabilitation sessions, or ongoing management of a cervical sympathetic nerve injury after the initial treatment. Documentation should clearly state the injury to the cervical sympathetic nerves and indicate that the encounter is for subsequent care, such as monitoring recovery, managing complications, or physical therapy.

• Ensure documentation specifies "subsequent encounter" for accurate seventh character assignment; "A" is for initial, "S" for sequela.
• Distinguish from injuries to other cervical nerves (e.g., brachial plexus) which have different code categories.
• Always code any associated neurological deficits or conditions (e.g., Horner's syndrome) as additional diagnoses.