By now, you may know that the term for a late effect in International Classification of Diseases, 10th Revision, Clinical Modification (ICD-10-CM) is sequela.

In addition to changing the terminology for describing a late effect of a disease or injury, ICD-10-CM also approaches different types of sequelae in different ways. In this article, we will review the guidelines for reporting sequelae and look at some examples of codes that are used to report them.

The guidelines for ICD-10-CM instruct

Some examples may help illustrate these guidelines.

Probably the most discussed approach to identifying an encounter to address a sequela is the use of seventh character S when reporting an injury, poisoning, or external cause of injury. Most categories of injury in ICD-10-CM include 3 choices for the seventh character appended to complete each code: A, initial encounter; D, subsequent encounter; or S, sequela.

A child is diagnosed with partial...

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