ICD-10-CM · Chapter 17 · Q00–Q99
Q85.1
Tuberous sclerosis
Congenital malformations, deformations and chromosomal abnormalities
Quick facts
- Code
- Q85.1
- Type
- Billable code
- ICD-10-CM chapter
- Chapter 17 — Congenital malformations, deformations and chromosomal abnormalities
- Category
- Q85 — Phakomatoses, not elsewhere classified
- Specificity
- 4 characters
How coders use this code
ICD-10-CM Q85.1 is a billable, fully specified code, so it can be reported directly on a claim to document a diagnosis of tuberous sclerosis. 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
- Q85.8Other phakomatoses, not elsewhere classified
- Q85.81PTEN hamartoma tumor syndrome
- Q85.82Other Cowden syndrome
- Q85.83Von Hippel-Lindau syndrome
- Q85.89Other phakomatoses, not elsewhere classified
- Q85.9Phakomatosis, unspecified
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