ICD-9-CM Volume 2 Index entries containing back-references to 
668.1:
- Arrest, arrested cardiac 427.5 cardiac 427.5   with with   abortion - see Abortion, by type, with specified complication NEC abortion - see Abortion, by type, with specified complication NEC
   ectopic pregnancy (see also categories 633.0 ectopic pregnancy (see also categories 633.0 -633.9 -633.9 ) 639.8 ) 639.8 
   molar pregnancy (see also categories 630 molar pregnancy (see also categories 630 -632 -632 ) 639.8 ) 639.8 
 
  complicating complicating   anesthesia anesthesia    correct substance properly administered 427.5 correct substance properly administered 427.5 
    obstetric 668.1 obstetric 668.1
    overdose or wrong substance given 968.4 overdose or wrong substance given 968.4      specified anesthetic - see Table of Drugs and Chemicals specified anesthetic - see Table of Drugs and Chemicals
 
 
   delivery (cesarean) (instrumental) 669.4 delivery (cesarean) (instrumental) 669.4 
   ectopic or molar pregnancy 639.8 ectopic or molar pregnancy 639.8 
   surgery (nontherapeutic) (therapeutic) 997.1 surgery (nontherapeutic) (therapeutic) 997.1 
 
  fetus or newborn 779.85 fetus or newborn 779.85 
  following following
  personal history, successfully rescucitated V12.53 personal history, successfully rescucitated V12.53 
  postoperative (immediate) 997.1 postoperative (immediate) 997.1    long-term effect of cardiac surgery 429.4 long-term effect of cardiac surgery 429.4 
 
 
 
- Complications anesthesia, anesthetic NEC (see also Anesthesia, complication) 995.22 anesthesia, anesthetic NEC (see also Anesthesia, complication) 995.22   in labor and delivery 668.9 in labor and delivery 668.9    affecting fetus or newborn 763.5 affecting fetus or newborn 763.5 
   cardiac 668.1 cardiac 668.1
   central nervous system 668.2 central nervous system 668.2 
   pulmonary 668.0 pulmonary 668.0 
   specified type NEC 668.8 specified type NEC 668.8 
 
 
  sedation during labor and delivery 668.9 sedation during labor and delivery 668.9   affecting fetus or newborn 763.5 affecting fetus or newborn 763.5 
  cardiac 668.1 cardiac 668.1
  central nervous system 668.2 central nervous system 668.2 
  pulmonary 668.0 pulmonary 668.0 
  specified type NEC 668.8 specified type NEC 668.8 
 
 
- Failure, failed heart (acute) (sudden) 428.9 heart (acute) (sudden) 428.9   with with   abortion - see Abortion, by type, with specified complication NEC abortion - see Abortion, by type, with specified complication NEC
   acute pulmonary edema (see also Failure, ventricular, left) 428.1 acute pulmonary edema (see also Failure, ventricular, left) 428.1     with congestion (see also Failure, heart) 428.0 with congestion (see also Failure, heart) 428.0 
 
   decompensation (see also Failure, heart) 428.0 decompensation (see also Failure, heart) 428.0 
   dilation - see Disease, heart dilation - see Disease, heart
   ectopic pregnancy (see also categories 633.0 ectopic pregnancy (see also categories 633.0 -633.9 -633.9 ) 639.8 ) 639.8 
   molar pregnancy (see also categories 630 molar pregnancy (see also categories 630 -632 -632 ) 639.8 ) 639.8 
 
  arteriosclerotic 440.9 arteriosclerotic 440.9 
  combined left-right sided 428.0 combined left-right sided 428.0 
  combined systolic and diastolic 428.40 combined systolic and diastolic 428.40 
  compensated (see also Failure, heart) 428.0 compensated (see also Failure, heart) 428.0 
  complicating complicating   abortion - see Abortion, by type, with specified complication NEC abortion - see Abortion, by type, with specified complication NEC
   delivery (cesarean) (instrumental) 669.4 delivery (cesarean) (instrumental) 669.4 
   ectopic pregnancy (see also categories 633.0 ectopic pregnancy (see also categories 633.0 -633.9 -633.9 ) 639.8 ) 639.8 
   molar pregnancy (see also categories 630 molar pregnancy (see also categories 630 -632 -632 ) 639.8 ) 639.8 
   obstetric anesthesia or sedation 668.1 obstetric anesthesia or sedation 668.1
   surgery 997.1 surgery 997.1 
 
  congestive (compensated) (decompensated) (see also Failure, heart) 428.0 congestive (compensated) (decompensated) (see also Failure, heart) 428.0    with rheumatic fever (conditions classifiable to 390 with rheumatic fever (conditions classifiable to 390 ) )
   fetus or newborn 779.89 fetus or newborn 779.89 
   hypertensive (see also Hypertension, heart) 402.91 hypertensive (see also Hypertension, heart) 402.91     with renal disease (see also Hypertension, cardiorenal) 404.91 with renal disease (see also Hypertension, cardiorenal) 404.91 
    benign 402.11 benign 402.11 
    malignant 402.01 malignant 402.01 
 
   rheumatic (chronic) (inactive) (with chorea) 398.91 rheumatic (chronic) (inactive) (with chorea) 398.91     active or acute 391.8 active or acute 391.8      with chorea (Sydenham's) 392.0 with chorea (Sydenham's) 392.0 
 
 
 
  decompensated (see also Failure, heart) 428.0 decompensated (see also Failure, heart) 428.0 
  degenerative (see also Degeneration, myocardial) 429.1 degenerative (see also Degeneration, myocardial) 429.1 
  diastolic 428.30 diastolic 428.30 
  due to presence of (cardiac) prosthesis 429.4 due to presence of (cardiac) prosthesis 429.4 
  fetus or newborn 779.89 fetus or newborn 779.89 
  following following
  high output NEC 428.9 high output NEC 428.9 
  hypertensive (see also Hypertension, heart) 402.91 hypertensive (see also Hypertension, heart) 402.91    with renal disease (see also Hypertension, cardiorenal) 404.91 with renal disease (see also Hypertension, cardiorenal) 404.91 
   benign 402.11 benign 402.11 
   malignant 402.01 malignant 402.01 
 
  left (ventricular) (see also Failure, ventricular, left) 428.1 left (ventricular) (see also Failure, ventricular, left) 428.1    with right-sided failure (see also Failure, heart) 428.0 with right-sided failure (see also Failure, heart) 428.0 
 
  low output (syndrome) NEC 428.9 low output (syndrome) NEC 428.9 
  organic - see Disease, heart organic - see Disease, heart
  postoperative (immediate) 997.1 postoperative (immediate) 997.1    long term effect of cardiac surgery 429.4 long term effect of cardiac surgery 429.4 
 
  rheumatic (chronic) (congestive) (inactive) 398.91 rheumatic (chronic) (congestive) (inactive) 398.91 
  right (secondary to left heart failure, conditions classifiable to 428.1 right (secondary to left heart failure, conditions classifiable to 428.1 ) (ventricular) (see also Failure, heart ) 428.0 ) (ventricular) (see also Failure, heart ) 428.0 
  senile 797 senile 797 
  specified during or due to a procedure 997.1 specified during or due to a procedure 997.1    long-term effect of cardiac surgery 429.4 long-term effect of cardiac surgery 429.4 
 
  systolic 428.20 systolic 428.20 
  thyrotoxic (see also Thyrotoxicosis) 242.9 thyrotoxic (see also Thyrotoxicosis) 242.9 [425.7 [425.7 ] ]
  valvular - see Endocarditis valvular - see Endocarditis