Ataxia, ataxy, ataxic 781.3

Ataxia-telangiectasia 334.8

Atelectasis (absorption collapse) (complete) (compression) (massive) (partial) (postinfective) (pressure collapse) (pulmonary) (relaxation) 518.0

Ateleiosis, ateliosis 253.3

Atelia - see Distortion

Ateliosis 253.3

Atelocardia 746.9

Atelomyelia 742.59

Athelia 757.6

Atheroembolism

Atheroma, atheromatous (see also Arteriosclerosis) 440.9

Atheromatosis - see also Arteriosclerosis

Atherosclerosis - see Arteriosclerosis

Athetosis (acquired) 781.0

Athlete's

Athletic team examination V70.3

Athrepsia 261

Athyrea (acquired) (see also Hypothyroidism) 244.9

Athyreosis (congenital) 243

Athyroidism (acquired) (see also Hypothyroidism) 244.9

Atmospheric pyrexia 992.0

Atonia, atony, atonic

Atopy NEC  V15.09

Atransferrinemia, congenital 273.8

Atresia, atretic (congenital) 759.89

Atrichia, atrichosis 704.00

Atrioventricularis commune 745.69

Atrophia - see also Atrophy

Atrophoderma, atrophodermia 701.9

Atrophy, atrophic

Attack

Attention to

Attrition

Atypical - see also condition

Atypism, cervix 622.10

Audible tinnitus (see also Tinnitus) 388.30

Auditory - see condition

Audry's syndrome (acropachyderma) 757.39

Aujeszky's disease 078.89

Aura

Aurantiasis, cutis 278.3

Auricle, auricular - see condition

Auriculotemporal syndrome 350.8

Australian

Autism, autistic (child) (infantile) 299.0

Autodigestion 799.89

Autoerythrocyte sensitization 287.2

Autographism 708.3

Autoimmune

Autoinfection, septic - see Septicemia