F33.9

Major depressive disorder, recurrent, unspecified

Billable / specific

F33.9 is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.

Inclusion terms

Applicable to

  • Monopolar depression NOS

Includes (from F33)

  • disorders of psychological development
  • recurrent episodes of depressive reaction
  • recurrent episodes of endogenous depression
  • recurrent episodes of major depression
  • recurrent episodes of psychogenic depression
  • recurrent episodes of reactive depression
  • recurrent episodes of seasonal affective disorder
  • recurrent episodes of seasonal depressive disorder
  • recurrent episodes of vital depression

Excludes1

Not coded here — never report together with this code.

  • bipolar disorder (F31.-) (from F33)
  • manic episode (F30.-) (from F33)

Excludes2

Not included here — may be reported together when both conditions exist.

  • symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99) (from F33)

Also known as

  • Monopolar depression NOS
  • Depression, monopolar
  • Disorder, depressive, major, recurrent
  • Disorder, depressive, recurrent
  • Episode, depressive, recurrent
  • Involution, involutional, depression, recurrent episode
  • Melancholia, recurrent
  • Menopause, menopausal, depression, agitated, recurrent episode
  • Menopause, menopausal, depression, psychotic, recurrent episode
  • Reaction, depressive, affective, recurrent episode

Parent code

  • F33Major depressive disorder, recurrentHeader

Related codes

  • F33.0Major depressive disorder, recurrent, mildBillable
  • F33.1Major depressive disorder, recurrent, moderateBillable
  • F33.2Major depressive disorder, recurrent severe without psychotic featuresBillable
  • F33.3Major depressive disorder, recurrent, severe with psychotic symptomsBillable
  • F33.4Major depressive disorder, recurrent, in remissionHeader
  • F33.8Other recurrent depressive disordersBillable

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