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  5. Q85
  6. 2024 ICD-10-CM Code Q85
Version 2024
Non-Billable Code

2024 ICD-10-CM Diagnosis Code Q85

Phakomatoses, not elsewhere classified

ICD-10-CM Code:
Q85
ICD-10 Code for:
Phakomatoses, not elsewhere classified
Is Billable?
Not Valid for Submission
Code Navigator:

Code Classification

  • Congenital malformations, deformations and chromosomal abnormalities
    (Q00-Q99)
    • Other congenital malformations
      (Q80-Q89)
      • Phakomatoses, not elsewhere classified
        (Q85)

Q85 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of phakomatoses, not elsewhere classified. The code is not specific and is NOT valid for the year 2024 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Specific Coding Applicable to Phakomatoses, not elsewhere classified

Non-specific codes like Q85 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10-CM codes with a higher level of specificity when coding for phakomatoses, not elsewhere classified:

  • Q85.0 for Neurofibromatosis (nonmalignant) - NON-BILLABLE CODE

  • Use Q85.00 for Neurofibromatosis, unspecified - BILLABLE CODE

  • Use Q85.01 for Neurofibromatosis, type 1 - BILLABLE CODE

  • Use Q85.02 for Neurofibromatosis, type 2 - BILLABLE CODE

  • Use Q85.03 for Schwannomatosis - BILLABLE CODE

  • Use Q85.09 for Other neurofibromatosis - BILLABLE CODE

  • Use Q85.1 for Tuberous sclerosis - BILLABLE CODE

  • Q85.8 for Other phakomatoses, not elsewhere classified - NON-BILLABLE CODE

  • Use Q85.81 for PTEN hamartoma tumor syndrome - BILLABLE CODE

  • Use Q85.82 for Other Cowden syndrome - BILLABLE CODE

  • Use Q85.83 for Von Hippel-Lindau syndrome - BILLABLE CODE

  • Use Q85.89 for Other phakomatoses, not elsewhere classified - BILLABLE CODE

  • Use Q85.9 for Phakomatosis, unspecified - BILLABLE CODE

Tabular List of Diseases and Injuries

The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.


Type 1 Excludes

Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • ataxia telangiectasia Louis-Bar G11.3
  • familial dysautonomia Riley-Day G90.1

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.