Cleft lip (Q36) ICD-10-CM
The Q36 code range covers cleft lip with 4 ICD-10-CM diagnosis codes. 3 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Includes
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
- cheiloschisis
- congenital fissure of lip
- harelip
- labium leporinum
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
- cleft lip with cleft palate Q37
Codes in the Q36 Range 4 codes · 3 billable
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the Q36 range.
Cleft Lip
Congenital defect in the upper lip where the maxillary prominence fails to merge with the merged medial nasal prominences. It is thought to be caused by faulty migration of the mesoderm in the head region.
About the Q36 Code Range
A cleft lip is a birth defect in which parts of the upper lip do not join together.
Within the cleft lip and cleft palate group, Q36 focuses on cleft lip. Its subdivisions distinguish a cleft on both sides (Q36.0), in the middle (Q36.1), or on one side (Q36.9).
Questions About This Page
How many billable codes are in the Q36 range?
Of the 4 codes in this range, 3 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the Q36 range classify?
The range classifies cleft lip. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
