Convert to ICD-10-CM: 
758.81 converts approximately to:
- 2015/16 ICD-10-CM Q97.0 Karyotype 47, XXXOr: 
- 2015/16 ICD-10-CM Q97.1 Female with more than three X chromosomesOr: 
- 2015/16 ICD-10-CM Q97.2 Mosaicism, lines with various numbers of X chromosomesOr: 
- 2015/16 ICD-10-CM Q97.8 Other specified sex chromosome abnormalities, female phenotypeOr: 
- 2015/16 ICD-10-CM Q98.5 Karyotype 47, XYYOr: 
- 2015/16 ICD-10-CM Q98.7 Male with sex chromosome mosaicismOr: 
- 2015/16 ICD-10-CM Q98.8 Other specified sex chromosome abnormalities, male phenotypeOr: 
- 2015/16 ICD-10-CM Q99.8 Other specified chromosome abnormalities
 ICD-9-CM Volume 2 Index entries containing back-references to 
758.81:
- Abnormal, abnormality, abnormalities - see also Anomaly chromosomal NEC 758.89 chromosomal NEC 758.89   analysis, nonspecific result 795.2 analysis, nonspecific result 795.2 
  autosomes (see also Abnormal, autosomes NEC) 758.5 autosomes (see also Abnormal, autosomes NEC) 758.5 
  fetal, (suspected) affecting management of pregnancy 655.1 fetal, (suspected) affecting management of pregnancy 655.1 
  sex 758.81 sex 758.81
 
 
- Absence (organ or part) (complete or partial) sex chromosomes 758.81 sex chromosomes 758.81
 
- Accessory (congenital)
- Additional - see also Accessory
- Anomaly, anomalous (congenital) (unspecified type) 759.9  chromosomes, chromosomal 758.9 chromosomes, chromosomal 758.9 
  sex chromosomes NEC (see also Anomaly, chromosomes) 758.81 sex chromosomes NEC (see also Anomaly, chromosomes) 758.81
 
- Mosaicism, mosaic (chromosomal) 758.9  sex 758.81 sex 758.81
 
- Penta X syndrome 758.81
- Sex chromosome mosaics 758.81
- Syndrome - see also Disease due to abnormality due to abnormality  autosomal NEC (see also Abnormal, autosomes NEC) 758.5 autosomal NEC (see also Abnormal, autosomes NEC) 758.5 
  chromosomal 758.89 chromosomal 758.89 
 
  Penta X 758.81 Penta X 758.81
  sex chromosome mosaic 758.81 sex chromosome mosaic 758.81
  triplex X female 758.81 triplex X female 758.81
  XXX 758.81 XXX 758.81
  XXXXY 758.81 XXXXY 758.81
 
- Triple - see also Accessory X female 758.81 X female 758.81
 
- XXX syndrome 758.81
- XXXXY syndrome 758.81
- XYY syndrome 758.81