ICD-9-CM Volume 2 Index entries containing back-references to 
655.1:
- 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 
 
 
- Pregnancy (single) (uterine) (without sickness) V22.2  management affected by management affected by  abnormal, abnormality abnormal, abnormality
  advanced maternal age NEC 659.6 advanced maternal age NEC 659.6 
  antibodies (maternal) antibodies (maternal)
  appendicitis 648.9 appendicitis 648.9 
  bariatric surgery status 649.2 bariatric surgery status 649.2 
  coagulation defect 649.3 coagulation defect 649.3 
  elderly multigravida 659.6 elderly multigravida 659.6 
  elderly primigravida 659.5 elderly primigravida 659.5 
  epilepsy 649.4 epilepsy 649.4 
  fetal (suspected) fetal (suspected)   abnormality 655.9 abnormality 655.9 
   acidemia 656.3 acidemia 656.3 
   anencephaly 655.0 anencephaly 655.0 
   bradycardia 659.7 bradycardia 659.7 
   central nervous system malformation 655.0 central nervous system malformation 655.0 
   chromosomal abnormalities (conditions classifiable to 758.0 chromosomal abnormalities (conditions classifiable to 758.0 -758.9 -758.9 ) 655.1 ) 655.1
   damage from damage from    drugs 655.5 drugs 655.5      obstetric, anesthetic, or sedative 655.5 obstetric, anesthetic, or sedative 655.5 
 
    environmental toxins 655.8 environmental toxins 655.8 
    intrauterine contraceptive device 655.8 intrauterine contraceptive device 655.8 
    maternal maternal
    radiation 655.6 radiation 655.6 
 
   death (near term) 656.4 death (near term) 656.4     early (before 22 completed weeks gestation) 632 early (before 22 completed weeks gestation) 632 
 
   distress 656.8 distress 656.8 
   excessive growth 656.6 excessive growth 656.6 
   growth retardation 656.5 growth retardation 656.5 
   hereditary disease 655.2 hereditary disease 655.2 
   hydrocephalus 655.0 hydrocephalus 655.0 
   intrauterine death 656.4 intrauterine death 656.4 
   poor growth 656.5 poor growth 656.5 
   spina bifida (with myelomeningocele) 655.0 spina bifida (with myelomeningocele) 655.0 
 
  fetal-maternal hemorrhage 656.0 fetal-maternal hemorrhage 656.0 
  gastric banding status 649.2 gastric banding status 649.2 
  gastric bypass status for obesity 649.2 gastric bypass status for obesity 649.2 
  hereditary disease in family (possibly) affecting fetus 655.2 hereditary disease in family (possibly) affecting fetus 655.2 
  incompatibility, blood groups (ABO) 656.2 incompatibility, blood groups (ABO) 656.2 
  insufficient prenatal care V23.7 insufficient prenatal care V23.7 
  intrauterine death 656.4 intrauterine death 656.4 
  isoimmunization (ABO) 656.2 isoimmunization (ABO) 656.2 
  large-for-dates fetus 656.6 large-for-dates fetus 656.6 
  light-for-dates fetus 656.5 light-for-dates fetus 656.5 
  meconium in liquor 656.8 meconium in liquor 656.8 
  mental disorder (conditions classifiable to 290 mental disorder (conditions classifiable to 290 -303 -303 , 305.0 , 305.0 , 305.2 , 305.2 -305.9 -305.9 , 306 , 306 -316 -316 , 317 , 317 -319 -319 ) 648.4 ) 648.4 
  multiparity (grand) 659.4 multiparity (grand) 659.4 
  obesity 649.1 obesity 649.1 
  poor obstetric history V23.49 poor obstetric history V23.49 
  postmaturity postmaturity
  post-term pregnancy 645.1 post-term pregnancy 645.1 
  previous previous
  prolonged pregnancy 645.2 prolonged pregnancy 645.2 
  small-for-dates fetus 656.5 small-for-dates fetus 656.5 
  smoking 649.0 smoking 649.0 
  spotting 649.5 spotting 649.5 
  tobacco use disorder 649.0 tobacco use disorder 649.0 
  young maternal age 659.8 young maternal age 659.8