| I.Q. | | |
| IBDU (colonic inflammatory bowel dissease unclassified) | K52.3 | |
| ICANS (immune effector cell-associated neurotoxicity syndrome) | | See: Syndrome, immune effector cell-associated neurotoxicity; |
| Ichthyoparasitism due to Vandellia cirrhosa | B88.8 | |
| Ichthyosis (congenital) | Q80.9 | |
| Ichthyotoxism | | See: Poisoning, fish; |
| Icteroanemia, hemolytic (acquired) | D59.9 | |
| Icterus | | See Also: Jaundice; |
| Ictus solaris, solis | T67.01 | |
| Id reaction (due to bacteria) | L30.2 | |
| Ideation | | |
| Identity disorder (child) | F64.9 | |
| Idioglossia | F80.0 | |
| Idiopathic | | Condition |
| Idiot, idiocy (congenital) | F73 | |
| IgE asthma | J45.909 | |
| IIAC (idiopathic infantile arterial calcification) | Q28.8 | |
| Ileitis (chronic) (noninfectious) | K52.9 | See Also: Enteritis; |
| Ileocolitis | K52.9 | See Also: Enteritis; |
| Ileostomy | | |
| Ileotyphus | | See: Typhoid; |
| Ileum | | Condition |
| Ileus (bowel) (colon) (inhibitory) (intestine) | K56.7 | |
| Iliac | | Condition |
| Iliotibial band syndrome | M76.3 | |
| Illiteracy | Z55.0 | |
| Illness | R69 | See Also: Disease; |
| Imbalance | R26.89 | |
| Imbecile, imbecility (I.Q.35-49) | F71 | |
| Imbedding, intrauterine device | T83.39 | |
| Imbibition, cholesterol (gallbladder) | K82.4 | |
| Imbrication, teeth,, fully erupted | M26.30 | |
| Imerslund (-Gräsbeck) syndrome | D51.1 | |
| Immature | | See Also: Immaturity; |
| Immaturity (less than 37 completed weeks) | | See Also: Preterm, newborn; |
| Immersion | T75.1 | |
| Immobile, immobility | | |
| Immune reconstitution (inflammatory) syndrome [IRIS] | D89.3 | |
| Immunization | | See Also: Vaccination; |
| Immunocompromised NOS | D84.9 | |
| Immunocytoma | C83.0 | |
| Immunodeficiency | D84.9 | |
| Immunodeficient NOS | D84.9 | |
| Immunosuppressed NOS | D84.9 | |
| Immunotherapy (encounter for) | | |
| Impaction, impacted | | |
| Impaired, impairment (function) | | |
| Impediment, speech | R47.9 | See Also: Disorder, speech; |
| Impending | | |
| Imperception auditory (acquired) | | See Also: Deafness; |
| Imperfect | | |
| Imperfectly descended testis | | See: Cryptorchid; |
| Imperforate (congenital) | | See Also: Atresia; |
| Impervious (congenital) | | See Also: Atresia; |
| Impetiginization of dermatoses | L01.1 | |
| Impetigo (any organism) (any site) (circinate) (contagiosa) (simplex) (vulgaris) | L01.00 | |
| Impingement (on teeth) | | |
| Implant, endometrial | N80.9 | |
| Implantation | | |
| Impotence (sexual) | N52.9 | |
| Impression, basilar | Q75.8 | |
| Imprisonment, anxiety concerning | Z65.1 | |
| Improper care (child) (newborn) | | Maltreatment |
| Improperly tied umbilical cord (causing hemorrhage) | P51.8 | |
| Impulsiveness (impulsive) | R45.87 | |
| Inability to swallow | | Aphagia |
| Inaccessible, inaccessibility | | |
| Inactive | | Condition |
| Inadequate, inadequacy | | |
| Inanition | R64 | |
| Inappropriate | | |
| Inattention at or after birth | | Neglect |
| Incarceration, incarcerated | | |
| Incised wound | | |
| Incision, incisional | | |
| Inclusion | | |
| Incompatibility | | |
| Incompetency, incompetent, incompetence | | |
| Incomplete | | Condition |
| Inconclusive | | |
| Incontinence | R32 | |
| Incontinentia pigmenti | Q82.3 | |
| Incoordinate, incoordination | | |
| Increase, increased | | |
| Increta placenta | O43.22 | |
| Incrustation, cornea, foreign body (lead) (zinc) | | See: Foreign body, cornea; |
| Incyclophoria | H50.54 | |
| Incyclotropia | | Cyclotropia |
| Indeterminate sex | Q56.4 | |
| India rubber skin | Q82.8 | |
| Indigestion (acid) (bilious) (functional) | K30 | |
| Indirect | | Condition |
| Induratio penis plastica | N48.6 | |
| Induration, indurated | | |
| Inebriety (without dependence) | | See: Alcohol, intoxication; |
| Inefficiency, kidney | N28.9 | |
| Inelasticity, skin | R23.4 | |
| Inequality, leg (length) (acquired) | | Deformity |
| Inertia | | |
| Infancy, infantile, infantilism | | Condition |
| Infant (s) | | See Also: Infancy; |
| Infantile | | Condition |
| Infantilism | | See: Infancy; |
| Infarct, infarction | | |
| Infecting | | Condition |
| Infection, infected, infective (opportunistic) | B99.9 | |
| Infective, infectious | | Condition |
| Infertility | | |
| Infestation | B88.9 | |
| Infiltrate, infiltration | | |
| Infirmity | R68.89 | |
| Inflammation, inflamed, inflammatory (with exudation) | | |
| Inflation, lung, imperfect (newborn) | | See: Atelectasis; |
| Influenza (bronchial) (epidemic) (respiratory (upper)) (unidentified influenza virus) | J11.1 | |
| Influenzal | | See: Influenza; |
| Influenza-like disease | | See: Influenza; |
| Infraction, Freiberg's (metatarsal head) | | See: Osteochondrosis, juvenile, metatarsus; |
| Infraeruption of tooth (teeth) | M26.34 | |
| Infusion complication, misadventure, or reaction | | See: Complications, infusion; |
| Ingestion | | |
| Ingrowing | | |
| Inguinal | | Condition |
| Inhalant-induced | | |
| Inhalation | | |
| Inhibition, orgasm | | |
| Inhibitor, systemic lupus erythematosus (presence of) | D68.62 | |
| Iniencephalus, iniencephaly | Q00.2 | |
| Injection, traumatic jet (air) (industrial) (water) (paint or dye) | T70.4 | |
| Injury | T14.90 | See Also: specified injury type; |
| Inoculation | | See Also: Vaccination; |
| Insanity, insane | | See Also: Psychosis; |
| Insect | | |
| Insecurity | | |
| Insensitivity | | |
| Insertion | | |
| Insolation (sunstroke) | T67.01 | |
| Insomnia (organic) | G47.00 | |
| Inspiration | | |
| Inspissated bile syndrome (newborn) | P59.1 | |
| Instability | | |
| Institutional syndrome (childhood) | F94.2 | |
| Institutionalization, affecting child | Z62.22 | |
| Insufficiency, insufficient | | |
| Insufflation, fallopian | Z31.41 | |
| Insular | | Condition |
| Insulinoma | | |
| Insuloma | | Insulinoma |
| Interference | | |
| Intermenstrual | | Condition |
| Intermittent | | Condition |
| Internal | | Condition |
| Interrogation | | |
| Interruption | | |
| Interstitial | | Condition |
| Intertrigo | L30.4 | |
| Intervertebral disc | | Condition |
| Intestine, intestinal | | Condition |
| Intolerance | | |
| Intoxicated NEC (without dependence) | | See: Alcohol, intoxication; |
| Intoxication | | |
| Intraabdominal testis, testes | | |
| Intracranial | | Condition |
| Intrahepatic gallbladder | Q44.1 | |
| Intraligamentous | | Condition |
| Intrathoracic | | Condition |
| Intrauterine contraceptive device | | |
| Intraventricular | | Condition |
| Intrinsic deformity | | Deformity |
| Intubation, difficult or failed | T88.4 | |
| Intumescence, lens (eye) (cataract) | | See: Cataract; |
| Intussusception (bowel) (colon) (enteric) (ileocecal) (ileocolic) (intestine) ( rectum) | K56.1 | |
| Invagination (bowel, colon, intestine or rectum) | K56.1 | |
| Inversion | | |
| Investigation | Z04.9 | See Also: Examination; |
| Involuntary movement, abnormal | R25.9 | |
| Involution, involutional | | Condition |
| IRDS (type I) | P22.0 | |
| Irideremia | Q13.1 | |
| Iridis rubeosis | | See: Disorder, iris, vascular; |
| Iridochoroiditis (panuveitis) | | See: Panuveitis; |
| Iridocyclitis | H20.9 | |
| Iridocyclochoroiditis (panuveitis) | | See: Panuveitis; |
| Iridodialysis | H21.53 | |
| Iridodonesis | H21.89 | |
| Iridoplegia (complete) (partial) (reflex) | H57.09 | |
| Iridoschisis | H21.25 | |
| Iris | | Condition |
| Iritis | | Iridocyclitis |
| Iron | | Condition |
| Iron-miner's lung | J63.4 | |
| Irradiated enamel (tooth, teeth) | K03.89 | |
| Irradiation effects, adverse | T66 | |
| Irreducible, irreducibility | | Condition |
| Irregular, irregularity | | |
| Irritable, irritability | R45.4 | |
| Irritation | | |
| Ischemia, ischemic | I99.8 | |
| Ischial spine | | Condition |
| Ischialgia | | See: Sciatica; |
| Ischiopagus | Q89.4 | |
| Ischium, ischial | | Condition |
| Ischuria | R34 | |
| Iselin's disease or osteochondrosis | | See: Osteochondrosis, juvenile, metatarsus; |
| Islands of | | |
| Islet cell tumor, pancreas | D13.7 | |
| Isoimmunization NEC | | Incompatibility |
| Isolation, isolated | | |
| Isoleucinosis | E71.19 | |
| Isomerism atrial appendages (with asplenia or polysplenia) | Q20.6 | |
| Isosporiasis, isosporosis | A07.3 | |
| Isovaleric acidemia | E71.110 | |
| Issue of | | |
| Itch, itching | | See Also: Pruritus; |
| Ivemark's syndrome (asplenia with congenital heart disease) | Q89.01 | |
| Ivory bones | Q78.2 | |
| Ixodiasis NEC | B88.8 | |
