Q85.89: Other phakomatoses, not elsewhere classified
Q85.89 is a billable, specific ICD-10-CM code for other phakomatoses, not elsewhere classified. It is valid for submission on a claim.
Check Q85.89 with the rest of the claim: free scrubberInclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Peutz-Jeghers syndrome
- Sturge-Weber(-Dimitri) syndrome
Excludes1 inherited from the categories above Q85.89
A category’s note binds every code beneath it.
Other codes that can never be billed with Q85.89
Their own Excludes1 notes name this code, so the conflict is not listed above.
Risk adjustment
Q85.89 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 23 Prostate, Breast, and Other Cancers and Tumors0.186 RAF
Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score. Look up the whole chart to see which of its HCCs the hierarchy would zero.
Medicare coverage
Q85.89 is named in 9 Medicare coverage policies: 9 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.
- A53060Billing and Coding: Ophthalmology: Extended Ophthalmoscopy and Fundus Photography
- A56394Billing and Coding: Colonoscopy and Sigmoidoscopy-Diagnostic
- A56456Billing and Coding: Colonoscopy/Sigmoidoscopy/Proctosigmoidoscopy
- A56461Billing and Coding: Endoscopy by Capsule
Alphabetic index entries that lead here
- Dimitri-Sturge-Weber disease
- Kraft-Weber-Dimitri disease
- Peutz-Jeghers disease or syndrome
- Sturge disease or syndrome(-Weber) (-Dimitri) (-Kalischer)
- Angiomatosis›encephalotrigeminal
- Phakomatosis›specified NEC
- Syndrome›Peutz-Jeghers
- Syndrome›Sturge-Weber(-Dimitri)
Code history
Unchanged in every release from FY2024 to FY2027.