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Q85

Non-billable

Phakomatoses, not elsewhere classified

Q85 is the ICD-10-CM code for Phakomatoses, not elsewhere classified. It is a non-billable category code — use a more specific child code such as Q85.0 for billing.

Status
Header (non-billable)
Chapter
Q00-Q99
Subcodes
4
Edition
FY2026

Q00-Q99 Congenital malformations, deformations and chromosomal abnormalities

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Excludes1 — not coded here

  • •ataxia telangiectasia [Louis-Bar] (G11.3)
  • •familial dysautonomia [Riley-Day] (G90.1)

Medications indicated for this condition

FDA labeling

Drugs whose FDA labeling lists this condition's category among its indications. Informational only — not a treatment recommendation or medical advice.

Conditions mapped to this code

MedlinePlus · NIH
NeurofibromatosisTuberous SclerosisVon Hippel-Lindau Disease

Plain-language health-topic references grounded in MedlinePlus (NIH/NLM).

Frequently asked questions

What is ICD-10 code Q85?
Q85 is the ICD-10-CM code for "Phakomatoses, not elsewhere classified". It falls under Q00-Q99 Congenital malformations, deformations and chromosomal abnormalities.
Is Q85 a billable code?
No — Q85 is a non-billable header code. Use a more specific child code (such as Q85.0) for billing.
What are the subcodes of Q85?
Q85 has 4 more specific child codes, including Q85.0, Q85.1, Q85.8.
What is excluded from Q85?
Excludes1 (not coded here): ataxia telangiectasia [Louis-Bar] (G11.3); familial dysautonomia [Riley-Day] (G90.1).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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