Q36 – Cleft lip
ICD-10-CM 2027 diagnosis code · Cleft lip and cleft palate
ICD-10-CM code
Q36
- Code
Q36(claims format:Q36)- Description
- Cleft lip
- Billable
- No – use a more specific code below
- 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
- Q35-Q37 Cleft lip and cleft palate
Billable codes under Q36
Q36 is a header code and cannot be used on claims. Choose the most specific code:
- Q36.0 – Cleft lip, bilateralBillable
- Q36.1 – Cleft lip, medianBillable
- Q36.9 – Cleft lip, unilateralBillable
Notes for Q36
Includes:
- cheiloschisis
- congenital fissure of lip
- harelip
- labium leporinum
Excludes1 (not coded here):
- cleft lip with cleft palate (Q37.-)
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
Block Q35-Q37
Excludes2 (not included here):
- Robin's syndrome (Q87.0)
Use additional code:
- code to identify associated malformation of the nose (Q30.2)
Frequently asked questions
What is ICD-10 code Q36?
Q36 is the ICD-10-CM code for cleft lip, in the block Q35-Q37 (Cleft lip and cleft palate).
Is Q36 a billable code?
No. Q36 is a header code with more specific child codes; report one of the billable codes listed above.
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.