Q36.9
Cleft lip, unilateral
Q36.9 (also written Q369) is a billable ICD-10-CM diagnosis code for cleft lip, unilateral. It is part of the FY2027 code set, effective October 1, 2026. It is one of the 3 codes in category Q36 (Cleft lip). The Alphabetic Index lists it under 1 entry. Its coding notes include a Use additional code instruction, 1 Excludes1 entry and 2 Excludes2 entries.
Guidelines tip
From the FY2027 Official Guidelines. ICD10Ref adds no rules of its own.
Chapter 17 codes can be used for life. Manifestations that are an inherent part of a specifically coded anomaly are not coded separately. A corrected malformation is reported with a personal history code.
Use additional code
Add the listed code as a secondary code, if known.
Excludes1
Not coded here. The listed conditions generally should not be reported together.
Excludes2
Not included here. Both codes may be reported if the patient has both conditions.
Also from chapter/block level (2 notes)
- inborn errors of metabolism (E70-E88)
Includes
Further defines or gives examples of the content of the category.
- cheiloschisis
- congenital fissure of lip
- harelip
- labium leporinum
Inclusion terms
Conditions classified to this code.
- Cleft lip NOS
Notes
Also from chapter/block level (1 note)
- Codes from this chapter are not for use on maternal records
Alphabetic Index terms
Terms the official Alphabetic Index lists for this code. 1 entry