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F07.81 ICD-10-CM Code: Postconcussional syndrome

F07.81 is not a CMS-HCC payment code. MEAT criteria · RAF Calculator · HCC Buddy coding tools

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Code lookupF07.81

FY 2026 Apr update / Mental, Behavioral and Neurodevelopmental disorders (F01-F99) / Mental disorders due to known physiological conditions (F01-F09)

F07.81

Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidance

Postconcussional syndrome

A collection of symptoms that can occur after a concussion or mild traumatic brain injury, including headaches, dizziness, memory problems, and mood changes.

OverviewRisk ModelsCode BookDocumentationAuditNotesEdition comparison

CMS-HCC V28

N/A

—

Not mapped

CMS-HCC V24

Historical

Historical

Not used for CY2026 payment

ACA/HHS

N/A

—

Not mapped

ESRD/PACE

N/A

—

Not mapped

RXHCC

N/A

—

Not mapped

Code Book Path

Official
F07Personality and behavioral disorders due to known physiological conditionF07.8Other personality and behavioral disorders due to known physiological conditionF07.81Postconcussional syndrome

Inclusion Terms

Official
  • Postcontusional syndrome (encephalopathy)
  • Post-traumatic brain syndrome, nonpsychotic

Excludes 2

Official
  • symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)Inherited from F01-F99

Related Codes

Official
F07.89Other personality and behavioral disorders due to known physiological condition

Includes

Official
  • disorders of psychological developmentInherited from F01-F99

Excludes 1

Official
  • current concussion (brain) (S06.0X- with seventh character A)
  • postencephalitic syndrome (F07.89)

Code First

Official
  • the underlying physiological conditionInherited from F07

Use Additional

Official
  • code to identify associated post-traumatic headache, if applicable (G44.3-)

Code Also

Official
  • , if applicable, sequela of concussion (S06.0X- with seventh character S)

Buddy Documentation Tip

HCC Buddy guidance
Document the history of concussion or head trauma in the medical record
Postconcussional syndrome is typically diagnosed when symptoms persist for weeks to months after the initial injury

Current with CMS: FY2026 ICD-10-CM Apr 1 update (effective Apr 1 – Sep 30, 2026) · CMS-HCC V28, 100% phased in for payment year 2026. FY2027 code set already staged for October 1, 2026. How HCC Buddy stays current →

Is F07.81 an HCC code?

No. F07.81 is a billable ICD-10-CM code with no mapping under the CMS-HCC V28 or V24 community payment models, and none under the ESRD, Part D RxHCC, or HHS-HCC models.

Code
F07.81
Description
Postconcussional syndrome
HCC (V28)
No CMS-HCC V28 mapping
RAF reference coefficient
—
Billable
Yes
Payment year
2026

Coder workflow notes

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This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

F07.81 is the ICD-10-CM diagnosis code for postconcussional syndrome. A collection of symptoms that can occur after a concussion or mild traumatic brain injury, including headaches, dizziness, memory problems, and mood changes. F07.81 sits in the ICD-10-CM chapter for mental, behavioral and neurodevelopmental disorders (f01-f99), within the section covering mental disorders due to known physiological conditions (f01-f09).

F07.81 is a billable ICD-10-CM code, but the current payload does not show a mapping under the CMS-HCC V28 or V24 community payment models, and none under the ESRD, Part D RxHCC, or HHS-HCC models. Do not assign risk adjustment value from this page when no source-backed mapping is shown; verify the applicable model and payment year.

Document the history of concussion or head trauma in the medical record.

HCC Buddy maintains structured V28 and V24 mapping, source-labeled coefficient references, and MEAT documentation criteria for F07.81 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.

Coding Tips

  • •Document the history of concussion or head trauma in the medical record
  • •Postconcussional syndrome is typically diagnosed when symptoms persist for weeks to months after the initial injury

Excludes 1, Do NOT code together

  • current concussion (brain) (S06.0X- with seventh character A)
  • postencephalitic syndrome (F07.89)

Use Additional Code

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

Code Also

  • , if applicable, sequela of concussion (S06.0X- with seventh character S)

Child Codes

F07.81Postconcussional syndrome
F07.89Other personality and behavioral disorders due to known physiological condition

Code Hierarchy

└F07Personality and behavioral disorders due to known physiological condition└F07.8Other personality and behavioral disorders due to known physiological condition└F07.81Postconcussional syndrome
└F07.81Postconcussional syndrome

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