F07.81Postconcussional syndrome

F07.81 is the ICD-10-CM diagnosis code for Postconcussional syndrome. It belongs to category F07 (personality and behavioral disorders due to known physiological condition), block F01-F09 (mental disorders due to known physiological conditions) and chapter 5 (mental, Behavioral and Neurodevelopmental disorders). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within F07.8 (other personality and behavioral disorders due to known physiological condition), F07.81 is specifically for Postconcussional syndrome. Related codes cover other personality and behavioral disorders due to known physiological condition (F07.89).

Don't report F07.81 together with the conditions in its Excludes1 note: current concussion (brain) (S06.0X- with seventh character A) and postencephalitic syndrome (F07.89).

Code first: the underlying physiological condition.

Use an additional code to identify associated post-traumatic headache, if applicable (G44.3-).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 102 (Headaches with MCC, relative weight 1.1201) and DRG 103 (Headaches without MCC, relative weight 0.822), in MDC 01 (Diseases and Disorders of the Nervous System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Before ICD-10, this condition was coded in ICD-9-CM as 310.2 (Postconcussion syndrome).