Q85.8
Non-billableOther phakomatoses, not elsewhere classified
Other phakomatoses, not elsewhere classified
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Excludes 2
Conditions not included here, but the patient may have both
Child Codes (4)
Related Codes(3)
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(1)
Frequently Asked Questions
What is the ICD-10 code for other phakomatoses, not elsewhere classified?
The ICD-10-CM code for other phakomatoses, not elsewhere classified is Q85.8. The full clinical description is "Other phakomatoses, not elsewhere classified". Q85.8 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code Q85.8 mean?
ICD-10-CM code Q85.8 represents “Other phakomatoses, not elsewhere classified”. It is classified under Chapter 17: Congenital Malformations, Deformations and Chromosomal Abnormalities and is a non-billable header code. Use a more specific child code for billing purposes.
Is Q85.8 a billable code?
No, Q85.8 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 4 child codes under Q85.8.
What chapter is Q85.8 in?
Q85.8 is in Chapter 17: Congenital Malformations, Deformations and Chromosomal Abnormalities (codes Q00-Q99).
What codes cannot be used with Q85.8?
Q85.8 has Excludes1 notes indicating codes that cannot be used together with it, including: ataxia telangiectasia [Louis-Bar] (G11.3); familial dysautonomia [Riley-Day] (G90.1); Meckel-Gruber syndrome (Q61.9).
What are the subcategories under Q85.8?
Q85.8 has 4 child codes, including: Q85.81 (PTEN hamartoma tumor syndrome), Q85.82 (Other Cowden syndrome), Q85.83 (Von Hippel-Lindau syndrome), Q85.89 (Other phakomatoses, not elsewhere classified).
What are the UMLS CUIs for Q85.8?
Q85.8 is linked to 1 UMLS Concept Unique Identifier: C0869082. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does Q85.8 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like other phakomatoses, not elsewhere classified affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of Q85.8?
Q85.8 maps to the ICD-11 code: LD2D.Z (Phakomatoses or hamartoneoplastic syndromes, unspecified).
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.