ICD-9-CM Volume 2 Index entries containing back-references to 
444.21:
- Embolism 444.9  artery 444.9 artery 444.9   auditory, internal 433.8 auditory, internal 433.8 
  basilar (see also Occlusion, artery, basilar) 433.0 basilar (see also Occlusion, artery, basilar) 433.0 
  bladder 444.89 bladder 444.89 
  carotid (common) (internal) (see also Occlusion, artery, carotid) 433.1 carotid (common) (internal) (see also Occlusion, artery, carotid) 433.1 
  cerebellar (anterior inferior) (posterior inferior) (superior) 433.8 cerebellar (anterior inferior) (posterior inferior) (superior) 433.8 
  cerebral (see also Embolism, brain) 434.1 cerebral (see also Embolism, brain) 434.1 
  choroidal (anterior) 433.8 choroidal (anterior) 433.8 
  communicating posterior 433.8 communicating posterior 433.8 
  coronary (see also Infarct, myocardium) 410.9 coronary (see also Infarct, myocardium) 410.9    without myocardial infarction 411.81 without myocardial infarction 411.81 
 
  extremity 444.22 extremity 444.22 
  hypophyseal 433.8 hypophyseal 433.8 
  mesenteric (with gangrene) 557.0 mesenteric (with gangrene) 557.0 
  ophthalmic (see also Occlusion, retina) 362.30 ophthalmic (see also Occlusion, retina) 362.30 
  peripheral 444.22 peripheral 444.22 
  pontine 433.8 pontine 433.8 
  precerebral NEC - see Occlusion, artery, precerebral precerebral NEC - see Occlusion, artery, precerebral
  pulmonary - see Embolism, pulmonary pulmonary - see Embolism, pulmonary
  renal 593.81 renal 593.81 
  retinal (see also Occlusion, retina) 362.30 retinal (see also Occlusion, retina) 362.30 
  specified site NEC 444.89 specified site NEC 444.89 
  vertebral (see also Occlusion, artery, vertebral) 433.2 vertebral (see also Occlusion, artery, vertebral) 433.2 
 
  peripheral arteries NEC 444.22 peripheral arteries NEC 444.22 
  upper extremity 444.21 upper extremity 444.21
 
- Occlusion arteries of extremities, lower 444.22 arteries of extremities, lower 444.22   without thrombus or embolus (see also Arteriosclerosis, extremities) 440.20 without thrombus or embolus (see also Arteriosclerosis, extremities) 440.20 
  due to stricture or stenosis 447.1 due to stricture or stenosis 447.1 
  upper 444.21 upper 444.21   without thrombus or embolus (see also Arteriosclerosis, extremities) 440.20 without thrombus or embolus (see also Arteriosclerosis, extremities) 440.20 
   due to stricture or stenosis 447.1 due to stricture or stenosis 447.1 
 
 
  peripheral arteries (lower extremity) 444.22 peripheral arteries (lower extremity) 444.22   without thrombus or embolus (see also Arteriosclerosis, extremities) 440.20 without thrombus or embolus (see also Arteriosclerosis, extremities) 440.20 
  due to stricture or stenosis 447.1 due to stricture or stenosis 447.1 
  upper extremity 444.21 upper extremity 444.21   without thrombus or embolus (see also Arteriosclerosis, extremities) 440.20 without thrombus or embolus (see also Arteriosclerosis, extremities) 440.20 
   due to stricture or stenosis 447.1 due to stricture or stenosis 447.1 
 
 
 
- Thrombosis, thrombotic (marantic) (multiple) (progressive) (septic) (vein) (vessel) 453.9  artery, arteries (postinfectional) 444.9 artery, arteries (postinfectional) 444.9   auditory, internal 433.8 auditory, internal 433.8 
  basilar (see also Occlusion, artery, basilar) 433.0 basilar (see also Occlusion, artery, basilar) 433.0 
  carotid (common) (internal) (see also Occlusion, artery, carotid) 433.1 carotid (common) (internal) (see also Occlusion, artery, carotid) 433.1    with other precerebral artery 433.3 with other precerebral artery 433.3 
 
  cerebellar (anterior inferior) (posterior inferior) (superior) 433.8 cerebellar (anterior inferior) (posterior inferior) (superior) 433.8 
  cerebral (see also Thrombosis, brain) 434.0 cerebral (see also Thrombosis, brain) 434.0 
  choroidal (anterior) 433.8 choroidal (anterior) 433.8 
  communicating posterior 433.8 communicating posterior 433.8 
  coronary (see also Infarct, myocardium) 410.9 coronary (see also Infarct, myocardium) 410.9    without myocardial infarction 411.81 without myocardial infarction 411.81 
   due to syphilis 093.89 due to syphilis 093.89 
   healed or specified as old 412 healed or specified as old 412 
 
  extremities 444.22 extremities 444.22 
  femoral 444.22 femoral 444.22 
  hepatic 444.89 hepatic 444.89 
  hypophyseal 433.8 hypophyseal 433.8 
  meningeal, anterior or posterior 433.8 meningeal, anterior or posterior 433.8 
  mesenteric (with gangrene) 557.0 mesenteric (with gangrene) 557.0 
  ophthalmic (see also Occlusion, retina) 362.30 ophthalmic (see also Occlusion, retina) 362.30 
  pontine 433.8 pontine 433.8 
  popliteal 444.22 popliteal 444.22 
  precerebral - see Occlusion, artery, precerebral NEC precerebral - see Occlusion, artery, precerebral NEC
  pulmonary 415.19 pulmonary 415.19 
  renal 593.81 renal 593.81 
  retinal (see also Occlusion, retina) 362.30 retinal (see also Occlusion, retina) 362.30 
  specified site NEC 444.89 specified site NEC 444.89 
  spinal, anterior or posterior 433.8 spinal, anterior or posterior 433.8 
  traumatic (complication) (early) (see also Injury, blood vessel, by site) 904.9 traumatic (complication) (early) (see also Injury, blood vessel, by site) 904.9 
  vertebral (see also Occlusion, artery, vertebral) 433.2 vertebral (see also Occlusion, artery, vertebral) 433.2    with other precerebral artery 433.3 with other precerebral artery 433.3