ICD-10-CM › Q00-QA1 › Q80-Q89 › Q85 Phakomatoses, not elsewhere classified › Q85.9
Phakomatosis, unspecified
ValidICD-10-CM diagnosis code.
Valid for claims with a date of service in the current code year.
What has happened to this code
Every change the publisher made, from 2007 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.
- FY2007 Added to the draft code set draft Phakomatosis, unspecified
Official coding rules
Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.
Inherited from Q85 Phakomatoses, not elsewhere classified
Excludes1 - never coded here
- ataxia telangiectasia [Louis-Bar] (G11.3)
- familial dysautonomia [Riley-Day] (G90.1)
How CDC's index refers to this code
Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.
- Hamartosis
- Phakomatosis
- Hamartoma, hamartoblastoma
Codes in the same group
| Code | Description | Status |
|---|---|---|
| Q85.0 | Neurofibromatosis (nonmalignant) | Not billable |
| Q85.1 | Tuberous sclerosis | Valid |
| Q85.8 | Other phakomatoses, not elsewhere classified | Not billable |