ICD-10-CM · Chapter 17 · Q00–Q99
Q85.89
Other phakomatoses, not elsewhere classified
Congenital malformations, deformations and chromosomal abnormalities
Quick facts
- Code
- Q85.89
- Type
- Billable code
- ICD-10-CM chapter
- Chapter 17 — Congenital malformations, deformations and chromosomal abnormalities
- Category
- Q85 — Phakomatoses, not elsewhere classified
- Specificity
- 5 characters
How coders use this code
ICD-10-CM Q85.89 is a billable, fully specified code, so it can be reported directly on a claim to document a diagnosis of other phakomatoses, not elsewhere classified. Coders assign it when the chart documentation supports this level of detail, always matching to the most specific code available and verifying against the chapter-specific guidelines published annually by NCHS/CMS.
Related codes in Q85
- Q85Phakomatoses, not elsewhere classified
- Q85.0Neurofibromatosis (nonmalignant)
- Q85.00Neurofibromatosis, unspecified
- Q85.01Neurofibromatosis, type 1
- Q85.02Neurofibromatosis, type 2
- Q85.03Schwannomatosis
- Q85.09Other neurofibromatosis
- Q85.1Tuberous sclerosis
- Q85.8Other phakomatoses, not elsewhere classified
- Q85.81PTEN hamartoma tumor syndrome
- Q85.82Other Cowden syndrome
- Q85.83Von Hippel-Lindau syndrome
- Q85.9Phakomatosis, unspecified
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