Skip to content- Rabbit fever – see Tularemia
- Rabies A82.9
- Rachischisis – see Spina bifida
- Rachitic – see also condition
- Rachitis, rachitism (acute) (tarda) – see also Rickets
- Radial nerve – see condition
- Radiation
- Radiculitis (pressure) (vertebrogenic) – see Radiculopathy
- Radiculomyelitis – see also Encephalitis
- Radiculopathy M54.10
- Radiodermal burns (acute, chronic, or occupational) – see Burn
- Radiodermatitis L58.9
- Radiotherapy session Z51.0
- RAEB D46.2- (refractory anemia with excess blasts)
- Rage, meaning rabies – see Rabies
- Ragpicker’s disease A22.1
- Ragsorter’s disease A22.1
- Raillietiniasis B71.8
- Railroad neurosis F48.8
- Railway spine F48.8
- Raised – see also Elevated
- Rake teeth, tooth M26.39
- Rales R09.89
- Ramifying renal pelvis Q63.8
- Ramsay-Hunt disease or syndrome B02.21 – see also Hunt’s, disease
- Ranula K11.6
- Rape
- Rapid
- Rarefaction, bone – see Disorder, bone, density and structure, specified NEC
- Rash (toxic) R21
- Rasmussen aneurysm – see Tuberculosis, pulmonary
- Rasmussen encephalitis G04.81
- Rat-bite fever A25.9
- Rathke’s pouch tumor D44.3
- Raymond I65.8 (-Céstan)
- Raynaud’s disease, phenomenon or syndrome (secondary) I73.00
- RDS (newborn) (type I) P22.0
- Reaction – see also Disorder
- Reactive airway disease – see Asthma
- Reactive depression – see Reaction, depressive
- Rearrangement
- Recalcitrant patient – see Noncompliance
- Recanalization, thrombus – see Thrombosis
- Recession, receding
- Recklinghausen disease Q85.01
- Reclus’ disease (cystic) – see Mastopathy, cystic
- Recrudescence
- Recrudescent typhus A75.1 (fever)
- Recruitment, auditory H93.21-
- Rectalgia K62.89
- Rectitis K62.89
- Rectocele
- Rectosigmoid junction – see condition
- Rectosigmoiditis K63.89
- Rectourethral – see condition
- Rectovaginal – see condition
- Rectovesical – see condition
- Rectum, rectal – see condition
- Recurrent – see condition
- Red bugs B88.0
- Red tide T65.82- – see also Table of Drugs and Chemicals
- Red-cedar lung or pneumonitis J67.8
- Reduced
- Redundant, redundancy
- Reduplication – see Duplication
- Reflex R29.2
- Reflux K21.9
- Reforming, artificial openings – see Attention to, artificial, opening
- Refractive error – see Disorder, refraction
- Refsum’s disease or syndrome G60.1
- Refusal of
- Regional – see condition
- Regurgitation R11.10
- Reichmann’s disease or syndrome K31.89
- Reifenstein syndrome E34.52
- Reinsertion
- Reiter’s disease, syndrome, or urethritis M02.30
- Rejection
- Relapsing fever A68.9
- Relationship
- Relaxation
- Release from prison, anxiety concerning Z65.2
- Remains
- Remittent fever B54 (malarial)
- Remnant
- Removal (from) (of)
- Ren
- Renal – see condition
- Rendu-Osler-Weber disease or syndrome I78.0
- Reninoma D41.0-
- Renon-Delille syndrome E23.3
- Reovirus, as cause of disease classified elsewhere B97.5
- Repeated falls NEC R29.6
- Replaced chromosome by dicentric ring Q93.2
- Replacement by artificial or mechanical device or prosthesis of
- Request for expert evidence Z04.89
- Reserve, decreased or low
- Residing
- Residual – see also condition
- Resistance, resistant (to)
- Resorption
- Respiration
- Respiratory – see also condition
- Respite care Z75.5
- Response (drug)
- Restenosis
- Restless legs G25.81 (syndrome)
- Restlessness R45.1
- Restoration (of)
- Restorative material (dental)
- Restriction of housing space Z59.19
- Rests, ovarian, in fallopian tube Q50.6
- Restzustand F20.5 (schizophrenic)
- Retained – see also Retention
- Retardation
- Retching – see Vomiting
- Retention – see also Retained
- Reticular erythematous mucinosis L98.5
- Reticulation, dust – see Pneumoconiosis
- Reticulocytosis R70.1
- Reticuloendotheliosis
- Reticulohistiocytoma D76.3 (giant-cell)
- Reticuloid, actinic L57.1
- Reticulosis (skin)
- Retina, retinal – see also condition
- Retinitis – see also Inflammation, chorioretinal
- Retinoblastoma C69.2-
- Retinochoroiditis – see also Inflammation, chorioretinal
- Retinopathy (background) H35.00
- Retinoschisis H33.10-
- Retortamoniasis A07.8
- Retractile testis Q55.22
- Retraction
- Retrobulbar – see condition
- Retrocecal – see condition
- Retrocession – see Retroversion
- Retrodisplacement – see Retroversion
- Retroflection, retroflexion – see Retroversion
- Retrognathia, retrognathism M26.19 (mandibular) (maxillary)
- Retrograde menstruation N92.5
- Retroperineal – see condition
- Retroperitoneal – see condition
- Retroperitonitis K68.9
- Retropharyngeal – see condition
- Retroplacental – see condition
- Retroposition – see Retroversion
- Retroprosthetic membrane T85.398
- Retrosternal thyroid Q89.2 (congenital)
- Retroversion, retroverted
- Retrovirus, as cause of disease classified elsewhere B97.30
- Retrusion, premaxilla M26.09 (developmental)
- Rett’s disease or syndrome F84.2
- Reverse peristalsis R19.2
- Reye’s syndrome G93.7
- Rh (factor)
- Rhabdomyolysis (idiopathic) M62.82
- Rhabdomyoma – see also Neoplasm, connective tissue, benign
- Rhabdomyosarcoma (any type) – see Neoplasm, connective tissue, malignant
- Rhabdosarcoma – see Rhabdomyosarcoma
- Rhesus (factor) – see Rh, incompatibility
- Rheumatic (acute) (subacute)
- Rheumatism (articular) (neuralgic) (nonarticular) M79.0
- Rheumatoid – see also condition
- Rhinitis (atrophic) (catarrhal) (chronic) (croupous) (fibrinous) (granulomatous) (hyperplastic) (hypertrophic) (membranous) (obstructive) (purulent) (suppurative) (ulcerative) J31.0
- Rhinoantritis (chronic) – see Sinusitis, maxillary
- Rhinodacryolith – see Dacryolith
- Rhinolith J34.89 (nasal sinus)
- Rhinomegaly J34.89
- Rhinopharyngitis (acute) (subacute) – see also Nasopharyngitis
- Rhinophyma L71.1
- Rhinorrhea J34.89
- Rhinosalpingitis – see Salpingitis, eustachian
- Rhinoscleroma A48.8
- Rhinosinusitis – see Sinusitis
- Rhinosporidiosis B48.1
- Rhinovirus infection NEC B34.8
- Rhizomelic chondrodysplasia punctata E71.540
- Rhythm
- Rhytidosis facialis L98.8
- Rib – see also condition
- Riboflavin deficiency E53.0
- Rice bodies – see also Loose, body, joint
- Richter syndrome – see Leukemia, chronic lymphocytic, B-cell type
- Richter’s hernia – see Hernia, abdomen, with obstruction
- Ricinism – see Poisoning, food, noxious, plant
- Rickets (active) (acute) (adolescent) (chest wall) (congenital) (current) (infantile) (intestinal) E55.0
- Rickettsia 364D/R. philipii A77.8 (Pacific Coast tick fever)
- Rickettsial disease A79.9
- Rickettsialpox A79.1 (Rickettsia akari)
- Rickettsiosis A79.9
- Rider’s bone – see Ossification, muscle, specified NEC
- Ridge, alveolus – see also condition
- Ridged ear, congenital Q17.3
- Riedel’s
- Rieger anomaly or syndrome Q13.81
- Riehl’s melanosis L81.4
- Rietti-Greppi-Micheli anemia D56.9
- Rieux’s hernia – see Hernia, abdomen, specified site NEC
- Riga K14.0 (-Fede)
- Riggs’ disease – see Periodontitis
- Right aortic arch Q25.47
- Right middle lobe syndrome J98.11
- Rigid, rigidity – see also condition
- Rigors R68.89
- Riley-Day syndrome G90.1
- RIND I63.9 (reversible ischemic neurologic deficit)
- Ring(s)
- Ringed hair Q84.1 (congenital)
- Ringworm B35.9
- Rise, venous pressure I87.8
- Rising, PSA following treatment for malignant neoplasm of prostate R97.21
- Risk
- Ritter’s disease L00
- Rivalry, sibling Z62.891
- Rivalta’s disease A42.2
- River blindness B73.01
- Robert’s pelvis Q74.2
- Robin Q87.0 (-Pierre)
- Robinow-Silverman-Smith syndrome Q87.19
- Robinson’s Q82.4 (hidrotic)
- Robles’ disease B73.01
- Rocky Mountain A77.0 (spotted)
- Roetheln – see Rubella
- Roger’s disease Q21.0
- Rokitansky-Aschoff sinuses K82.8 (gallbladder)
- Rolando’s fracture (displaced) S62.22-
- Romano-Ward I45.81 (prolonged QT interval)
- Romberg’s disease or syndrome G51.8
- Roof, mouth – see condition
- Rosacea L71.9
- Rosary, rachitic E55.0
- Rose
- Rosenbach’s erysipeloid A26.0
- Rosenthal’s disease or syndrome D68.1
- Roseola B09
- Ross River disease or fever B33.1
- Rossbach’s disease K31.89
- Rostan’s asthma (cardiac) – see Failure, ventricular, left
- Rotation
- Rotes Quérol disease or syndrome – see Hyperostosis, ankylosing
- Roth (-Bernhardt) – see Meralgia paraesthetica
- Rothmund Q82.8 (-Thomson)
- Rotor’s disease or syndrome E80.6
- Round
- Roussy-Lévy syndrome G60.0
- Rubella (German measles) B06.9
- Rubeola (meaning measles) – see Measles
- Rubeosis, iris – see Disorder, iris, vascular
- Rubinstein-Taybi syndrome Q87.2
- Rudimentary (congenital) – see also Agenesis
- Ruled out condition – see Observation, suspected
- Rumination R11.10
- Runaway [from current living environment] Z62.892
- Runeberg’s disease D51.0
- Running out of money Z59.86
- Runny nose R09.89
- Rupia (syphilitic) A51.39
- Rupture, ruptured
- Russell-Silver syndrome Q87.19
- Russian spring-summer type encephalitis A84.0
- Rust’s disease A18.01 (tuberculous cervical spondylitis)
- Ruvalcaba-Myhre-Smith syndrome E71.440
- Rytand-Lipsitch syndrome I44.2
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