Phakomatoses, not elsewhere classified Q85-

Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as Q85. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • ataxia telangiectasia [Louis-Bar] (
    ICD-10-CM Diagnosis Code G11.3

    Cerebellar ataxia with defective DNA repair

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Ataxia telangiectasia [Louis-Bar]
    Type 2 Excludes
    • Cockayne's syndrome (Q87.19)
    • other disorders of purine and pyrimidine metabolism (E79.-)
    • xeroderma pigmentosum (Q82.1)
  • familial dysautonomia [Riley-Day] (
    ICD-10-CM Diagnosis Code G90.1

    Familial dysautonomia [Riley-Day]

      2016 2017 2018 2019 2020 Billable/Specific Code
  • Q85 Phakomatoses, not elsewhere classified
    • Q85.0 Neurofibromatosis (nonmalignant)
      • Q85.00 Neurofibromatosis, unspecified
      • Q85.01 Neurofibromatosis, type 1
      • Q85.02 Neurofibromatosis, type 2
      • Q85.03 Schwannomatosis
      • Q85.09 Other neurofibromatosis
    • Q85.1 Tuberous sclerosis
    • Q85.8 Other phakomatoses, not elsewhere classified
    • Q85.9 Phakomatosis, unspecified