What code would be used for a complication that doesn't have a specific designation in ICD-10-CM?

The correct choice is "C," which stands for "Not Elsewhere Classified" (NEC). This designation is used in the ICD-10-CM coding system to indicate that a specific complication does not have a dedicated code but still fits within a broader category that captures it.

The NEC code is helpful when there is a need to convey that the condition or complication being recorded does not have a unique identifier but still requires documentation. This is particularly common with complications where the clinical specifics might not be accounted for through the existing codes but still pertain to a recognized set of conditions.

Using NEC maintains clarity and precision in medical records, allowing healthcare providers to specify that while the complication may not be explicitly defined within the manual, it is still relevant to the patient's care and diagnosis. This ensures accurate tracking for insurance, treatment plans, and overall patient health management.