TABLE 1

Standard Accepted Cleft Classifications and Abbreviations

Cleft ClassificationAbbreviationExclusion
Cleft lipCLExcludes (1) cleft lip and alveolus; (2) cleft lip and palate; and (3) cleft palate alone
Cleft lip with or without cleft alveolusCL ± AExcludes (1) cleft lip and palate; and (2) cleft palate alone
Cleft palate aloneCPExcludes (1) cleft lip; and (2) cleft lip and palate
Cleft lip and palateCLPExcludes (1) cleft lip; and (2) cleft palate alone
Cleft lip with or without cleft palateCL ± PExcludes cleft palate alone
Cleft palate with or without cleft lipCP ± CLExcludes cleft lip and cleft lip and alveolus
Cleft lip and/or cleft palateCL/PNo exclusion
  • Modified from Huang AH, Patel KB, Maschhoff CW, et al. Occlusal classification in relation to original cleft width in patients with unilateral cleft lip and palate. Cleft Palate Craniofac J. 2015;52(5):574-578.