ICD-10-CM
- CADASIL (cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy)
- Café, au lait spots
- Caffey's syndrome
- Caisson disease
- Caked breast (puerperal, postpartum)
- Cake kidney
- Calabar swelling
- Calcaneo-apophysitis
- Calcicosis
- Calciuria
- Calicectasis
- Caliectasis
- Callositas, callosity (infected)
- CALME (childhood asymmetric labium majus enlargement)
- Camptocormia (hysterical)
- Camurati-Engelmann syndrome
- Canavan disease
- Cancer (o)phobia
- Cancrum oris
- Candidid
- Candiru infection or infestation
- Cannabinosis
- Canton fever
- Cantrell's syndrome
- Carapata (disease)
- Carbon lung
- Carcinomaphobia
- Cardiochalasia
- Cardiomalacia
- Cardiomyoliposis
- Cardiopathia nigra
- Cardiophobia
- Cardiosymphysis
- Carneous mole
- Carnitine insufficiency
- Carotenemia (dietary)
- Carotenosis (cutis) (skin)
- Carotid body or sinus syndrome
- Carotidynia
- Carpenter's syndrome
- Carr-Barr-Plunkett syndrome
- Carrion's disease
- Car sickness
- Carter's relapsing fever (Asiatic)
- Cascade stomach
- Caseation lymphatic gland (tuberculous)
- Cassidy (-Scholte) syndrome (malignant carcinoid)
- Castellani's disease
- Castration, traumatic, male
- Casts in urine
- Catabolism, senile
- Catatonia (schizophrenic)
- Cauliflower ear
- Cavare's disease (familial periodic paralysis)
- Cavernitis (penis)
- Cavernositis
- Cavovarus foot, congenital
- Cazenave's disease
- CCCA (central centrifugal cicatricial alopecia)
- CDKL5 (Cyclin-Dependent Kinase-Like 5 Deficiency Disorder)
- Cecoureterocele
- Cementosis
- Central auditory processing disorder
- Central pain syndrome
- Cephalomenia
- Cerebro-hepato-renal syndrome
- Cerebroside lipidosis
- Cerebrospasticity (congenital)
- Ceroid-lipofuscinosis, neuronal
- Cerumen (accumulation) (impacted)
- Cervicalgia
- Cervicocolpitis (emphysematosa) (see also Cervicitis)
- Céstan (-Chenais) paralysis or syndrome
- Céstan-Raymond syndrome
- Cestodiasis
- CGL (congenital generalized lipodystrophy)
- Chabert's disease
- Chacaleh
- Chafing
- Chagres fever
- Chairridden
- Chalasia (cardiac sphincter)
- Chalicosis (pulmonum)
- Chancroid (anus) (genital) (penis) (perineum) (rectum) (urethra) (vulva)
- Changing sleep-work schedule, affecting sleep
- Changuinola fever
- Chapping skin
- Charcot-Marie-Tooth disease, paralysis or syndrome
- CHARGE association
- Cheadle's disease
- Chédiak-Higashi (-Steinbrinck) syndrome (congenital gigantism of peroxidase granules)
- Cheese itch
- Cheese-washer's lung
- Cheese-worker's lung
- Cheilodynia
- Cheiromegaly
- Cheiropompholyx
- Cherubism
- Cheyne-Stokes breathing (respiration)
- Chicago disease
- Chiclero ulcer or sore
- Chigger (infestation)
- Chilaiditi's syndrome (subphrenic displacement, colon)
- Chilblain (s) (lupus)
- Chilomastigiasis
- Chimera 46,XX/46,XY
- Chinese dysentery
- Chionophobia
- Chitral fever
- Chloroma
- Chlorotic anemia
- Chocolate cyst (ovary)
- Chokes (resulting from bends)
- Choking sensation
- Cholangiectasis
- Cholangiohepatoma
- Cholecystectasia
- Choledochitis (suppurative)
- Choleperitoneum, choleperitonitis
- Cholesteatosis, diffuse
- Cholesteremia
- Cholocolic fistula
- Choluria
- Chondroectodermal dysplasia
- Chondrogenesis imperfecta
- Chondrolysis
- Chondro-osteodysplasia (Morquio-Brailsford type)
- Chondro-osteodystrophy
- Chondropathia tuberosa
- Chorditis (fibrinous) (nodosa) (tuberosa)
- Choreoathetosis (paroxysmal)
- Chorioadenoma (destruens)
- Chorioamnionitis
- Chorioangioma
- Chorioencephalitis (acute) (lymphocytic) (serous)
- Choriomeningitis (acute) (lymphocytic) (serous)
- Chorioretinopathy, central serous
- Choroideremia
- Christian-Weber disease
- Christmas disease
- Chromhidrosis, chromidrosis
- Chromoconversion
- Chromophytosis
- Chromotrichomycosis
- Churg-Strauss syndrome
- Chyle cyst, mesentery
- Chylomicronemia (fasting) (with hyperprebetalipoproteinemia)
- CIDP (chronic inflammatory demyelinating polyneuropathy )
- CINCA (chronic infantile neurological, cutaneous and articular syndrome)
- Circumcision (in absence of medical indication) (ritual) (routine)
- Circumvallate placenta
- Cistern, subarachnoid
- Citrullinemia
- Citrullinuria
- Civatte's disease or poikiloderma
- Clam digger's itch
- Clammy skin
- Clark's paralysis
- Clarke-Hadfield syndrome (pancreatic infantilism)
- Clastothrix
- Claude's disease or syndrome
- Claudicatio venosa intermittens
- Claustrophobia
- Clavus (infected)
- Cleidocranial dysostosis
- Cleptomania
- Clicking hip (newborn)
- Clinical research investigation (clinical trial) (control subject) (normal comparison) (participant)
- Cloaca (persistent)
- Clonorchiasis, clonorchis infection (liver)
- Clonus
- Closed bite
- Clostridium (C.) perfringens, as cause of disease classified elsewhere
- Cloudy antrum, antra
- Clouston's (hidrotic) ectodermal dysplasia
- Cloverleaf skull
- Clubbing of finger (s) (nails)
- Clump, kidney
- Clumsiness, clumsy child syndrome
- Cluttering
- Coalworker's lung or pneumoconiosis
- Coated tongue
- Coccidiosis (intestinal)
- Coccydynia, coccygodynia
- Cochin-China diarrhea
- Cock's peculiar tumor
- Cockayne's syndrome
- Coenurosis
- Coffee-worker's lung
- Coldsore
- Colles' fracture
- Collet (-Sicard) syndrome
- Collier's asthma or lung
- Collodion baby
- Colloid nodule (of thyroid) (cystic)
- Coloptosis
- Colpocele
- Colpospasm
- Combat fatigue
- Comedo, comedones (giant)
- Comminuted fracture - code as Fracture, closed
- Compressed air disease
- Concavity chest wall
- Concealed penis
- Concern (normal) about sick person in family
- Concrescence (teeth)
- Confusional arousals
- Congelation
- Conjoined twins
- Conjunctivochalasis
- Conn's syndrome
- Conradi (-Hunermann) disease
- Conscious simulation (of illness)
- Constitutionally substandard
- Conversion hysteria, neurosis or reaction
- Converter, tuberculosis (test reaction)
- Cooley's anemia
- Coolie itch
- Copra itch
- Coprophagy
- Coprophobia
- Coproporphyria, hereditary
- Corbus' disease (gangrenous balanitis)
- Cordis ectopia
- Corditis (spermatic)
- Corectopia
- Cori's disease (glycogen storage)
- Corkhandler's disease or lung
- Corkscrew esophagus
- Corkworker's disease or lung
- Corn (infected)
- Cornelia de Lange syndrome
- Cornu cutaneum
- Corrected transposition
- Co-sleeping, child-caregiver
- Costen's syndrome or complex
- Costochondritis
- Cotard's syndrome
- Cot death
- Cotia virus
- Cotton wool spots (retinal)
- Coupled rhythm
- Couvelaire syndrome or uterus (complicating delivery)
- Crabs, meaning pubic lice
- Crack baby
- Cracked tooth
- Cradle cap
- Craft neurosis
- Craniocleidodysostosis
- Craniofenestria (skull)
- Craniolacunia (skull)
- Craniopagus
- Craniopathy, metabolic
- Craniopharyngioma
- Craniorachischisis (totalis)
- Cranioschisis
- Craniostenosis
- Crenated tongue
- Creotoxism
- Crescent or conus choroid, congenital
- CREST syndrome
- Crib death
- Cribriform hymen
- Cri-du-chat syndrome
- Crigler-Najjar disease or syndrome
- Crime, victim of
- Crimean hemorrhagic fever
- Criminalism
- Crocq's disease (acrocyanosis)
- Crooked septum, nasal
- Crossbite (anterior) (posterior)
- Cross syndrome
- Crouzon's disease
- Crowding, tooth, teeth, fully erupted
- CRST syndrome
- Cruchet's disease
- Crusta lactea
- Crusts
- Cruveilhier's atrophy or disease
- Cruveilhier-Baumgarten cirrhosis, disease or syndrome
- Cryofibrinogenemia
- Cryptitis (anal) (rectal)
- Cryptopapillitis (anus)
- Cryptostromosis
- Crystalluria
- Cultural deprivation or shock
- Curling esophagus
- Curschmann (-Batten) (-Steinert) disease or syndrome
- Cusp, Carabelli - omit code
- Cyclencephaly
- Cycloid personality
- Cyclophoria
- Cyclopia, cyclops
- Cyclopism
- Cyclosporiasis
- Cyclothymia
- Cyclothymic personality
- Cyclotropia
- Cylindruria
- Cynophobia
- Cynorexia
- Cystathioninemia
- Cystathionine synthase deficiency
- Cystathioninuria
- Cystinosis (malignant)
- Cystinuria
- Cystolithiasis
- Cystoplegia
- Cystoptosis
- Cystorrhagia
- Cytomegalovirus infection
- Cytomycosis (reticuloendothelial)