Q85 ICD-10-CM Code: Phakomatoses, not elsewhere classified
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Code definition
Official description
Q85Phakomatoses, not elsewhere classified
ICD-10-CM diagnosis code · United States clinical modification
Classification
Where Q85 sits
- 1
Chapter 17
Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA1)
- 2
Section
Other congenital malformations (Q80-Q89)
- 3
Category Q85
Phakomatoses, not elsewhere classified
- 4
Code Q85
Phakomatoses, not elsewhere classified
More specific choices
Codes under Q85
Q85 is a non-billable category. Choose the child code that best matches the documented diagnosis.
Documentation details
Notes for this code
Inclusion terms
No inclusion terms are listed for Q85.
Code first
No “code first” instruction is listed for Q85.
Use additional code
No “use additional code” instruction is listed for Q85.
Excludes1
Conditions that should not be reported together with this code.
- ataxia telangiectasia [Louis-Bar] (G11.3)
- familial dysautonomia [Riley-Day] (G90.1)
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for Q85.
Transparency
Source and release
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Review the CDC/NCHS ICD-10-CM sourceCode-specific guidance
Frequently asked questions
What does ICD-10-CM code Q85 mean?
Q85 is the FY 2027 U.S. ICD-10-CM code for “Phakomatoses, not elsewhere classified.”
Is Q85 a billable or specific ICD-10-CM code?
No. Q85 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.
Where is Q85 located in ICD-10-CM?
Q85 is listed in Chapter 17, Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA1), within Other congenital malformations (Q80-Q89) (Q80–Q89), under category Q85, Phakomatoses, not elsewhere classified.
What coding notes are listed for Q85?
No inclusion terms are listed for Q85 in this reference record. No code-first instruction is listed. Excludes1 notes: ataxia telangiectasia [Louis-Bar] (G11.3); familial dysautonomia [Riley-Day] (G90.1). No Excludes2 note is listed.
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