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Q85.9

Phakomatosis, unspecified

Billable FY2026 2025-10-01 → 2026-09-30
This is the unspecified option. 3 more specific codes sit alongside it. Worth checking whether the documentation supports one of them.
Exclusions 2 never code together
Q85code
Excludes1
  • ataxia telangiectasia [Louis-Bar] (G11.3)G11.3
  • familial dysautonomia [Riley-Day] (G90.1)G90.1

Excludes1 — never code together. The excluded condition and this one are mutually exclusive.

Instructional notes 1
Q85.9code
Inclusion terms
  • Hamartosis NOS
Index entries leading here 3
Alongside this code 3 same parent — Q85
Q85.0 Neurofibromatosis (nonmalignant) category Q85.1 Tuberous sclerosis Q85.8 Other phakomatoses, not elsewhere classified category
Additional references
AHA Coding Clinic® Licence required

Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.

Risk adjustment

CMS22HCC12 CMS28HCC23 ESRD21HCC12 ESRD24HCC12 RX08HCC22

Presence is a property of the code. Untick a model to hide it everywhere.

This code

Billable
yes
Code set
FY2026
Parent
Q85
Block
Q80-Q89
Siblings
3

Present FY2024–FY2027.