Convert to ICD-10-CM: 
520.6 converts approximately to:
- 2015/16 ICD-10-CM K00.6 Disturbances in tooth eruptionOr: 
- 2015/16 ICD-10-CM K01.0 Embedded teethOr: 
- 2015/16 ICD-10-CM K01.1 Impacted teeth
 ICD-9-CM Volume 2 Index entries containing back-references to 
520.6:
- Anomaly, anomalous (congenital) (unspecified type) 759.9  dentition 520.6 dentition 520.6
 
- Deciduous tooth (retained) 520.6
- Dentia praecox 520.6
- Dentition 520.7  abnormal 520.6 abnormal 520.6
  anomaly 520.6 anomaly 520.6
  delayed 520.6 delayed 520.6
  disorder of 520.6 disorder of 520.6
  precocious 520.6 precocious 520.6
  retarded 520.6 retarded 520.6
 
- Disorder - see also Disease dentition 520.6 dentition 520.6
 
- Disturbance - see also Disease tooth tooth  eruption 520.6 eruption 520.6
  formation 520.4 formation 520.4 
  structure, hereditary NEC 520.5 structure, hereditary NEC 520.5 
 
 
- Embedded tooth, teeth 520.6
- Eruption teeth, tooth teeth, tooth  accelerated 520.6 accelerated 520.6
  delayed 520.6 delayed 520.6
  difficult 520.6 difficult 520.6
  disturbance of 520.6 disturbance of 520.6
  in abnormal sequence 520.6 in abnormal sequence 520.6
  incomplete 520.6 incomplete 520.6
  late 520.6 late 520.6
  natal 520.6 natal 520.6
  neonatal 520.6 neonatal 520.6
  obstructed 520.6 obstructed 520.6
  partial 520.6 partial 520.6
  persistent primary 520.6 persistent primary 520.6
  premature 520.6 premature 520.6
  prenatal 520.6 prenatal 520.6
 
 
- Impaction, impacted cuspid 520.6 cuspid 520.6
  dental 520.6 dental 520.6
  molar 520.6 molar 520.6
  tooth, teeth 520.6 tooth, teeth 520.6
 
- Malocclusion (teeth) 524.4  due to due to  abnormal swallowing 524.59 abnormal swallowing 524.59 
  accessory teeth (causing crowding) 524.31 accessory teeth (causing crowding) 524.31 
  dentofacial abnormality NEC 524.89 dentofacial abnormality NEC 524.89 
  impacted teeth (causing crowding) 520.6 impacted teeth (causing crowding) 520.6
  missing teeth 524.30 missing teeth 524.30 
  mouth breathing 524.59 mouth breathing 524.59 
  sleep postures 524.59 sleep postures 524.59 
  supernumerary teeth (causing crowding) 524.31 supernumerary teeth (causing crowding) 524.31 
  thumb sucking 524.59 thumb sucking 524.59 
  tongue, lip, or finger habits 524.59 tongue, lip, or finger habits 524.59 
 
 
- Malposition tooth, teeth 524.30 tooth, teeth 524.30   with impaction 520.6 with impaction 520.6
 
 
- Natal tooth, teeth 520.6
- Neonatal - see also condition teeth, tooth 520.6 teeth, tooth 520.6
 
- Obstruction, obstructed, obstructive tooth eruption 520.6 tooth eruption 520.6
 
- Persistence, persistent (congenital) 759.89  primary (deciduous) primary (deciduous)  teeth 520.6 teeth 520.6
  vitreous hyperplasia 743.51 vitreous hyperplasia 743.51 
 
 
- Prenatal teeth 520.6 teeth 520.6
 
- Retention, retained deciduous tooth 520.6 deciduous tooth 520.6
 
- Shedding teeth, premature, primary (deciduous) 520.6 teeth, premature, primary (deciduous) 520.6
 
- Teeth, tooth - see also condition prenatal 520.6 prenatal 520.6
 
- Unerupted teeth, tooth 520.6