F73

Profound intellectual disabilities

Billable / specific

F73 is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.

Inclusion terms

Includes

  • disorders of psychological development

Applicable to

  • IQ level below 20-25
  • Profound mental subnormality

Excludes1

Not coded here — never report together with this code.

  • borderline intellectual functioning, IQ above 70 to 84 (R41.83)

Excludes2

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

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

Code first

Sequence the underlying condition first.

  • any associated physical or developmental disorders

Also known as

  • IQ level below 20-25
  • Profound mental subnormality
  • Disability, disabilities, intellectual, profound
  • Idiot, idiocy
  • I.Q., under 20

Related codes

  • F70Mild intellectual disabilitiesBillable
  • F71Moderate intellectual disabilitiesBillable
  • F72Severe intellectual disabilitiesBillable
  • F78Other intellectual disabilitiesHeader
  • F79Unspecified intellectual disabilitiesBillable

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