ICDcodes.org
FY2027

F06.8 — Other specified mental disorders due to known physiological condition

BillableUnspecified

Is F06.8 billable?

Yes, but F06.8 is an unspecified code. F06.8 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, F06.8 is an unspecified or catch-all code. Payers apply additional scrutiny to unspecified codes and many deny them when the medical record supports a more specific option, so check the documentation before selecting F06.8 — the more specific alternatives are listed below.

F06.8 at a glance

CodeF06.8
DescriptionOther specified mental disorders due to known physiological condition
BillableYes
Code setICD-10-CM FY2027
Valid for encountersOctober 1, 2026 – September 30, 2027

Which MS-DRGs does F06.8 group to?

F06.8 sits in MDC 19 and helps define the logic of 1 MS-DRG (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.

  • 884Organic Disturbances and Intellectual Disabilitymedical

How is F06.8 listed in the Alphabetic Index?

These are the routes through the Alphabetic Index that lead to F06.8. They show the wording a clinician may have documented, which often differs from the Tabular description.

  • Psychotic episode due to or associated with physical condition
  • Deterioration › epileptic
  • Epilepsy, epileptic, epilepsia › deterioration (attack) (cerebral) (convulsion) (fit) (seizure)
  • Memory disturbance, lack or loss › mild, following organic brain damage
  • Psychosis, psychotic › epileptic
  • State › affective and paranoid, mixed, organic psychotic (of)
  • State › transient organic psychotic NEC (of)
  • Disorder › dissociative › due togeneral medical condition (of)
  • Disorder › dissociative › organic (of)
  • Disorder › obsessive-compulsive › and related disorder due to a known physiological condition (of)
  • Disorder › organic › dissociative (of)
  • Disorder › organic › emotionally labile (of)

Inclusion terms

Alternative wording in documentation that is classified to F06.8.

  • Epileptic psychosis NOS
  • Obsessive-compulsive and related disorder due to a known physiological condition
  • Organic dissociative disorder
  • Organic emotionally labile [asthenic] disorder

Excludes1 — never code together — inherited from F06

The conditions below can never be reported together with F06.8 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

  • unspecified dementia (F03.-)

Code first — inherited from F06

The underlying condition below must be sequenced before F06.8. F06.8 describes a manifestation and cannot be the principal or first-listed diagnosis.

  • the underlying physiological condition

Excludes2 — not included here — inherited from Chapter 5

The conditions below are not part of F06.8, but a patient may have both at the same time. When documentation supports it, F06.8 and the excluded code may both be reported.

  • symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)

Excludes2 — not included here — inherited from F06

The conditions below are not part of F06.8, but a patient may have both at the same time. When documentation supports it, F06.8 and the excluded code may both be reported.

  • delirium due to known physiological condition (F05)
  • dementia as classified in F01-F02
  • other mental disorders associated with alcohol and other psychoactive substances (F10-F19)

How long has F06.8 existed?

F06.8 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.

Which codes are confused with F06.8?

ICD-10-CM declares these codes mutually exclusive with F06.8 — exactly one of each pair can be correct for a given encounter.

Which conditions are coded to F06.8?

What other codes are in the F06 family? (6)