Q85.89 – Other phakomatoses, not elsewhere classified
ICD-10-CM 2027 diagnosis code · Other congenital malformations
ICD-10-CM code
Q85.89
- Code
Q85.89(claims format:Q8589)- Description
- Other phakomatoses, not elsewhere classified
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 17. Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA1)
- Block
- Q80-Q89 Other congenital malformations
- Parent codes
- Q85 › Q85.8
Notes for Q85.89
Applicable to:
- Peutz-Jeghers syndrome
- Sturge-Weber(-Dimitri) syndrome
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
Q85 – Phakomatoses, not elsewhere classified
Excludes1 (not coded here):
Q85.8 – Other phakomatoses, not elsewhere classified
Excludes1 (not coded here):
- Meckel-Gruber syndrome (Q61.9)
Index terms for Q85.89
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in Q85.8
Frequently asked questions
What is ICD-10 code Q85.89?
Q85.89 is the ICD-10-CM code for other phakomatoses, not elsewhere classified, in the block Q80-Q89 (Other congenital malformations).
Is Q85.89 a billable code?
Yes. Q85.89 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does Q85.89 belong to?
It belongs to category Q85 – Phakomatoses, not elsewhere classified.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.