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2008 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Digestive System 520-579 > Diseases Of Oral Cavity, Salivary Glands, And Jaws 520-529 > Dentofacial Anomalies Including Malocclusion 524.* > 2008 ICD-9-CM Diagnosis 524.22 Angle's class ii  On October 1, 2008 the 2009 ICD-9-CM codes came into effect. Therefore, this code may be out of date. The 2009 version of ICD-9-CM 524.22 can be accessed here. Malocclusion in which the mandible is posterior to the maxilla as reflected by the relationship of the first permanent molar (distoclusion). 524.22 is a specific code that can be used to specify a diagnosis 524.22 contains 9 index entries View the ICD-9-CM Volume 1 524.* hierarchy 524.22 also known as: Disto-occlusion Division I Disto-occlusion Division II Index entries containing 524.22: Angle's class II 524.22 Anomaly, anomalous (congenital) (unspecified type) 759.9 dental arch relationship 524.20 angle's class II 524.22 disto-occlusion 524.22 division I 524.22 division II 524.22 Disto-occlusion (division I) (division II) 524.22 Malnutrition (calorie) 263.9 severe 261 angle's class II 524.22 Occlusion disto division I 524.22 division II 524.22