Cleft lip and cleft palate (Q35-Q37) ICD-10-CM
The Q35–Q37 section covers cleft lip and cleft palate with 19 ICD-10-CM diagnosis codes, of which 16 are billable in fiscal year 2026. The section is organized into the 3 code ranges listed below.
Use Additional Code
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.
- code to identify associated malformation of the nose Q30.2
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
- Robin's syndrome Q87.0
Code Ranges in This Section 3 ranges · 19 codes
| Code Range | Title | Codes | Billable |
|---|---|---|---|
| Q35 | Cleft palate (Q35) | 6 | 5 |
| Q36 | Cleft lip (Q36) | 4 | 3 |
| Q37 | Cleft palate with cleft lip (Q37) | 9 | 8 |
The info icon previews the code ranges inside each row and its instructional notations from the official Tabular List.
About the Q35–Q37 Code Range
ICD-10 codes Q35 through Q37 specifically classify various types of cleft lip and cleft palate conditions. These codes distinguish between cleft palate alone, cleft lip alone, and combinations of cleft palate with cleft lip, helping healthcare professionals accurately document the precise anatomical involvement.
This range covers cleft palate codes (Q35), which include subtypes like cleft hard palate (Q35.1), cleft soft palate (Q35.3), cleft hard palate with soft palate involvement (Q35.5), and cleft uvula (Q35.7). The codes also address cleft lip conditions (Q36), differentiating bilateral (Q36.0), median (Q36.1), and unilateral cleft lips (Q36.9). Furthermore, the combined forms involving both palate and lip fall under Q37 codes, distinguishing bilateral or unilateral cleft lip paired with variations of cleft palate (hard, soft, or both). Common terms such as "complete cleft lip," "bilateral cleft lip," "submucous cleft palate," and "cleft palate with cleft lip" relate directly to these codes, supporting clear medical documentation and billing. This specificity ensures precise coding for surgical planning and outcomes tracking in craniofacial congenital anomalies.
Questions About This Page
How many codes are in the Q35-Q37 range?
The Q35-Q37 range contains 19 ICD-10-CM diagnosis codes in FY 2026. 16 of them are billable, and the rest are category headers that organize the section.
What conditions does Q35-Q37 cover?
The range covers cleft lip and cleft palate. The code ranges listed above break it into groups of related conditions, and each one links to its own page with the full code list.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
