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Free Medical Coding > ICD10 CM > 2025 ICD-10-CM Diagnosis Codes Index > 2025 ICD-10-CM Index Term Starting With ‘R’

2025 ICD-10-CM Index Term Starting With ‘R’

  • Rabbit fever
  • Rabies, A82.9
  • Rachischisis
  • Rachitic
  • Rachitis, rachitism (acute) (tarda)
  • Radial nerve
  • Radiation
  • Radiculitis (pressure) (vertebrogenic)
  • Radiculomyelitis
  • Radiculopathy, M54.10
  • Radiodermal burns (acute, chronic, or occupational)
  • Radiodermatitis, L58.9
  • Radiotherapy session, Z51.0
  • RAEB (refractory anemia with excess blasts), D46.2-
  • Rage, meaning rabies
  • Ragpicker\’s disease, A22.1
  • Ragsorter\’s disease, A22.1
  • Raillietiniasis, B71.8
  • Railroad neurosis, F48.8
  • Railway spine, F48.8
  • Raised
  • Rake teeth, tooth, M26.39
  • Rales, R09.89
  • Ramifying renal pelvis, Q63.8
  • Ramsay-Hunt disease or syndrome, B02.21
  • Ranula, K11.6
  • Rape
  • Rapid
  • Rarefaction, bone
  • Rash (toxic), R21
  • Rasmussen aneurysm
  • Rasmussen encephalitis, G04.81
  • Rat-bite fever, A25.9
  • Rathke\’s pouch tumor, D44.3
  • Raymond syndrome (-Céstan), I65.8
  • Raynaud\’s disease, phenomenon or syndrome (secondary), I73.00
  • RDS (newborn) (type I), P22.0
  • Reaction
  • Reactive airway disease
  • Reactive depression
  • Rearrangement
  • Recalcitrant patient
  • Recanalization, thrombus
  • Recession, receding
  • Recklinghausen disease, Q85.01
  • Reclus\’ disease (cystic)
  • Recrudescent typhus (fever), A75.1
  • Recruitment, auditory, H93.21-
  • Rectalgia, K62.89
  • Rectitis, K62.89
  • Rectocele
  • Rectosigmoid junction
  • Rectosigmoiditis, K63.89
  • Rectourethral
  • Rectovaginal
  • Rectovesical
  • Rectum, rectal
  • Recurrent
  • Red bugs, B88.0
  • Red tide, T65.82-
  • Red-cedar lung or pneumonitis, J67.8
  • Reduced
  • Redundant, redundancy
  • Reduplication
  • Reflex, R29.2
  • Reflux, K21.9
  • Reforming, artificial openings
  • Refractive error
  • Refsum\’s disease or syndrome, G60.1
  • Refusal of
  • Regional
  • 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 (malarial), B54
  • Remnant
  • Removal (from) (of)
  • Ren
  • Renal
  • 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
  • Resistance, resistant (to)
  • Resorption
  • Respiration
  • Respiratory
  • Respite care, Z75.5
  • Response (drug)
  • Restenosis
  • Restless legs (syndrome), G25.81
  • Restlessness, R45.1
  • Restoration (of)
  • Restorative material (dental)
  • Restriction of housing space, Z59.1
  • Rests, ovarian, in fallopian tube, Q50.6
  • Restzustand (schizophrenic), F20.5
  • Retained
  • Retardation
  • Retching
  • Retention
  • Reticular erythematous mucinosis, L98.5
  • Reticulation, dust
  • Reticulocytosis, R70.1
  • Reticuloendotheliosis
  • Reticulohistiocytoma (giant-cell), D76.3
  • Reticuloid, actinic, L57.1
  • Reticulosis (skin)
  • Retina, retinal
  • Retinitis
  • Retinoblastoma, C69.2-
  • Retinochoroiditis
  • Retinopathy (background), H35.00
  • Retinoschisis, H33.10-
  • Retortamoniasis, A07.8
  • Retractile testis, Q55.22
  • Retraction
  • Retrobulbar
  • Retrocecal
  • Retrocession
  • Retrodisplacement
  • Retroflection, retroflexion
  • Retrognathia, retrognathism (mandibular) (maxillary), M26.19
  • Retrograde menstruation, N92.5
  • Retroperineal
  • Retroperitoneal
  • Retroperitonitis, K68.9
  • Retropharyngeal
  • Retroplacental
  • Retroposition
  • Retroprosthetic membrane, T85.398
  • Retrosternal thyroid (congenital), Q89.2
  • Retroversion, retroverted
  • Retrovirus, as cause of disease classified elsewhere, B97.30
  • Retrusion, premaxilla (developmental), M26.09
  • Rett\’s disease or syndrome, F84.2
  • Reverse peristalsis, R19.2
  • Reye\’s syndrome, G93.7
  • Rh (factor)
  • Rhabdomyolysis NEC (idiopathic), M62.82
  • Rhabdomyoma
  • Rhabdomyosarcoma (any type)
  • Rhabdosarcoma
  • Rhesus incompatibility (factor)
  • Rheumatic (acute) (subacute)
  • Rheumatism (articular) (neuralgic) (nonarticular), M79.0
  • Rheumatoid
  • Rhinitis (atrophic) (catarrhal) (chronic) (croupous) (fibrinous) (granulomatous) (hyperplastic) (hypertrophic) (membranous) (obstructive) (purulent) (suppurative) (ulcerative), J31.0
  • Rhinoantritis (chronic)
  • Rhinodacryolith
  • Rhinolith (nasal sinus), J34.89
  • Rhinomegaly, J34.89
  • Rhinopharyngitis (acute) (subacute)
  • Rhinophyma, L71.1
  • Rhinorrhea, J34.89
  • Rhinosalpingitis
  • Rhinoscleroma, A48.8
  • Rhinosporidiosis, B48.1
  • Rhinovirus infection NEC, B34.8
  • Rhizomelic chondrodysplasia punctata, E71.540
  • Rhythm
  • Rhytidosis facialis, L98.8
  • Rib
  • Riboflavin deficiency, E53.0
  • Rice bodies
  • Richter syndrome
  • Richter\’s hernia
  • Ricinism
  • Rickets (active) (acute) (adolescent) (chest wall) (congenital) (current) (infantile) (intestinal), E55.0
  • Rickettsia 364D/R. philipii (Pacific Coast tick fever), A77.8
  • Rickettsial disease, A79.9
  • Rickettsialpox (Rickettsia akari), A79.1
  • Rickettsiosis, A79.9
  • Rider\’s bone
  • Ridge, alveolus
  • Ridged ear, congenital, Q17.3
  • Riedel\’s
  • Rieger\’s anomaly or syndrome, Q13.81
  • Riehl\’s melanosis, L81.4
  • Rietti-Greppi-Micheli anemia, D56.9
  • Rieux\’s hernia
  • Riga disease (-Fede), K14.0
  • Riggs\’ disease
  • Right aortic arch, Q25.47
  • Right middle lobe syndrome, J98.11
  • Rigid, rigidity
  • Rigors, R68.89
  • Riley-Day syndrome, G90.1
  • RIND (reversible ischemic neurologic deficit), I63.9
  • Ring (s)
  • Ringed hair (congenital), Q84.1
  • 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 syndrome (-Pierre), Q87.0
  • Robinow-Silvermann-Smith syndrome, Q87.19
  • Robinson\’s ectodermal dysplasia or syndrome (hidrotic), Q82.4
  • Robles\’ disease, B73.01
  • Rocky Mountain fever (spotted), A77.0
  • Roetheln
  • Roger\’s disease, Q21.0
  • Rokitansky-Aschoff sinuses (gallbladder), K82.8
  • Rolando\’s fracture (displaced), S62.22-
  • Romano-Ward syndrome (prolonged QT interval), I45.81
  • Romberg\’s disease or syndrome, G51.8
  • Roof, mouth
  • 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)
  • Rotation
  • Rotes Quérol disease or syndrome
  • Roth disease or syndrome (-Bernhardt)
  • Rothmund syndrome (-Thomson), Q82.8
  • Rotor\’s disease or syndrome, E80.6
  • Round
  • Roussy-Lévy syndrome, G60.0
  • Rubella (German measles), B06.9
  • Rubeola (meaning measles)
  • Rubeosis, iris
  • Rubinstein-Taybi syndrome, Q87.2
  • Rudimentary (congenital)
  • Ruled out condition
  • Rumination, R11.10
  • 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 (tuberculous cervical spondylitis), A18.01
  • Ruvalcaba-Myhre-Smith syndrome, E71.440
  • Rytand-Lipsitch syndrome, I44.2