ICD-10-CM Alphabetic Index · FY 2026 Letter E
Index Terms Starting With E ICD-10-CM
Home › ICD-10-CM Codes List › Index to Diseases and Injuries › EThe letter E section of the FY 2026 Alphabetic Index carries 350 main terms , from Eales' disease to Eyeworm disease of Africa. Terms with a direct code link straight to the code page, cross references point to the main term that holds the codes, and terms with a handful of sub-entries render in full right here. The largest terms open their own full index page.
✓ Built from the official CMS FY 2026 index file Effective Oct 1, 2025 – Sep 30, 2026
Eales' disease Code H35.06 Non-billable Ear Sub-entries see also condition Earache Term
Eaton-Lambert syndrome Cross-ref See: Syndrome, Lambert-Eaton Eberth's disease (typhoid fever) Code A01.00 Ebola virus disease Code A98.4 Ebstein's anomaly or syndrome (heart) Code Q22.5 Eccentro-osteochondrodysplasia Code E76.29 Ecchondroma Cross-ref See: Neoplasm, bone, benign
conjunctiva see Hemorrhage, conjunctiva
eye (traumatic) see Contusion, eyeball
eyelid (traumatic) see Contusion, eyelid
Echinococciasis Cross-ref See: Echinococcus
Echinococcosis Cross-ref See: Echinococcus
Echinorhynchiasis Code B83.8 Echinostomiasis Code B66.8 Echovirus, as cause of disease classified elsewhere Code B97.12 complicating
pregnancy
O15.0 Non-billable Economic circumstances affecting care Code Z59.9 Economo's disease Code A85.8 with aneurysm see Aneurysm, aorta
Ectodermal dysplasia (anhidrotic) Code Q82.4 Ectodermosis erosiva pluriorificialis Code L51.1 due to defect in anterior abdominal wall
Q79.59 Ectromelia Sub-entries Q73.8 lower limb see Defect, reduction, limb, lower, specified type NEC
upper limb see Defect, reduction, limb, upper, specified type NEC
contact see Dermatitis, contact
external ear see Otitis, externa, acute, eczematoid
Eddowes (-Spurway) syndrome Code Q78.0 with nephritis see Nephrosis
allergic
T78.3 Non-billable amputation stump (surgical) (sequelae (late effect))
T87.89 angioneurotic (allergic) (any site) (with urticaria)
T78.3 Non-billable Edentulism Cross-ref See: Absence, teeth, acquired
Edsall's disease Code T67.2 Non-billable Educational handicap Sub-entries Z55.9 less than a high school diploma
Z55.5 no general equivalence degree (GED)
Z55.5 Edward's syndrome Cross-ref See: Trisomy, 18
Effect (s) (of) (from) Cross-ref See: Effect, adverse NEC
abnormal gravitational (G) forces or states
T75.81 Non-billable abuse see Maltreatment
air pressure
T70.9 Non-billable specified NEC
T70.8 Non-billable Effects, late Cross-ref See: Sequelae
Effluvium Sub-entries
Effort syndrome (psychogenic) Code F45.8 amniotic fluid see Pregnancy, complicated by, premature rupture of membranes
bronchial see Bronchitis
Egg shell nails Sub-entries L60.3 EGPA (eosinophilic granulomatosis with polyangiitis) Code M30.1 Egyptian splenomegaly Code B65.1 Ehlers-Danlos syndrome Code Q79.60 See also: Syndrome, Ehlers-Danlos Eichstedt's disease Code B36.0 Eisenmenger's Sub-entries
Ekbom's syndrome (restless legs) Code G25.81 Ekman's syndrome (brittle bones and blue sclera) Code Q78.0 Elastic skin Sub-entries Q82.8 Elastofibroma Cross-ref See: Neoplasm, connective tissue, benign
Elastoma (juvenile) Sub-entries Q82.8 Elastomyofibrosis Code I42.4 Elastosis Sub-entries
atrophicans (senile)
L57.4 perforans serpiginosa
L87.2 Elbow Cross-ref See: condition Electric current, electricity, effects (concussion) (fatal) (nonfatal) (shock) Sub-entries T75.4 Non-billable Electric feet syndrome Code E53.8 Electrocution Sub-entries T75.4 Non-billable from electroshock gun (taser)
T75.4 Non-billable Electrolyte imbalance Sub-entries E87.8 with
abortion see Abortion by type, complicated by, electrolyte imbalance
arabicum see Infestation, filarial
congenital (any site) (hereditary)
Q82.0 due to
alanine transaminase (ALT)
R74.01 ALT (alanine transaminase)
R74.01 aspartate transaminase (AST)
R74.01 Elliptocytosis (congenital) (hereditary) Sub-entries D58.1 sickle-cell (disease)
D57.8 Non-billable Ellison-Zollinger syndrome Code E16.4 Ellis-van Creveld syndrome (chondroectodermal dysplasia) Code Q77.6 Emaciation Sub-entries R64 Embedded tooth, teeth Sub-entries K01.0 Embolic Cross-ref See: condition air (any site) (traumatic)
T79.0 Non-billable following
abortion see Abortion by type complicated by embolism
Embolus Cross-ref See: Embolism
Embryoma Sub-entries see also Neoplasm, uncertain behavior, by site benign see Neoplasm, benign, by site
malignant see also Neoplasm, malignant, by site
Embryonic Sub-entries
Embryopathia NOS Code Q89.9 Emesis Cross-ref See: Vomiting Emotional lability Code R45.86 Emotionality, pathological Code F60.3 Emotogenic disease Cross-ref See: Disorder, psychogenic
cellular tissue (traumatic)
T79.7 Non-billable Empty nest syndrome Code Z60.0 accessory sinus (chronic) see Sinusitis
antrum (chronic) see Sinusitis, maxillary
brain (any part) see Abscess, brain
En coup de sabre lesion Code L94.1 acute
A86 see also Encephalitis, viral Encephalocele Sub-entries Q01.9 Encephalocystocele Cross-ref See: Encephalocele Encephaloduroarteriomyosynangiosis (EDAMS) Code I67.5 Encephalomalacia (brain) (cerebellar) (cerebral) Cross-ref See: Softening, brain Encephalomeningitis Cross-ref See: Meningoencephalitis Encephalomeningocele Cross-ref See: Encephalocele Encephalomeningomyelitis Cross-ref See: Meningoencephalitis Encephalomyelitis Sub-entries G04.90 see also Encephalitis Encephalomyelocele Cross-ref See: Encephalocele Encephalomyelomeningitis Cross-ref See: Meningoencephalitis Encephalomyelopathy Code G96.9 Encephalomyeloradiculitis (acute) Code G61.0 Encephalomyeloradiculoneuritis (acute) (Guillain-Barré) Code G61.0 Encephalomyeloradiculopathy Code G96.9 Encephalopathia hyperbilirubinemica, newborn Sub-entries P57.9 due to isoimmunization (conditions in P55)
P57.0 acute necrotizing hemorrhagic
G04.30 Encephalorrhagia Cross-ref See: Hemorrhage, intracranial, intracerebral
Encephalosis, posttraumatic Code F07.81 Enchondroma Cross-ref See also: Neoplasm, bone, benign
Enchondromatosis (cartilaginous) (multiple) Code Q78.4 Encopresis Sub-entries R15.9 adjustment and management (of)
breast implant
Z45.81 Non-billable myringotomy device (stent) (tube)
Z45.82 Encystment Cross-ref See: Cyst
cerebral or cerebrospinal
I67.7 deformans see Arteriosclerosis
embolic see Embolism
Endemic Cross-ref See: condition with rheumatic fever (conditions in I00)
active see Endocarditis, acute, rheumatic
inactive or quiescent (with chorea)
I09.1 Endocardium, endocardial Sub-entries see also condition
Endocervicitis Sub-entries see also Cervicitis
due to intrauterine (contraceptive) device
T83.69 Non-billable Endocrine Cross-ref See: condition Endocrinopathy, pluriglandular Code E31.9 Endodontic Sub-entries
Endodontitis Sub-entries K04.01 Endomastoiditis Cross-ref See: Mastoiditis
Endometrioma Code N80.12 Non-billable with ectopic pregnancy
O08.0 blennorrhagic (gonococcal) (acute) (chronic)
A54.24 cervix, cervical (with erosion or ectropion) see also Cervicitis
Endometrium Cross-ref See: condition Endomyocardiopathy, South African Code I42.3 Endomyocarditis Cross-ref See: Endocarditis
Endomyofibrosis Code I42.3 Endomyometritis Cross-ref See: Endometritis
Endopericarditis Cross-ref See: Endocarditis
Endoperineuritis Cross-ref See: Disorder, nerve
Endophlebitis Cross-ref See: Phlebitis
Endophthalmia Cross-ref See: Endophthalmitis, purulent
bleb associated H59.4 see also Bleb, inflamed (infected), postprocedural
in (due to)
Endosalpingioma Code D28.2 Endosalpingiosis Code N94.89 Endosteitis Cross-ref See: Osteomyelitis
Endothelioma, bone Cross-ref See: Neoplasm, bone, malignant
Endotheliosis (hemorrhagic infectional) Code D69.8 Endotoxemia - code to condition Term
Endotrachelitis Cross-ref See: Cervicitis
Engelmann (-Camurati) syndrome Code Q78.3 English disease Cross-ref See: Rickets
Engman's disease Code L30.3 lung (passive) see Edema, lung
Enlargement, enlarged Sub-entries see also Hypertrophy congenital see Anomaly, alveolar
Enophthalmos Sub-entries H05.40 Non-billable due to
orbital tissue atrophy
H05.41 Non-billable trauma or surgery
H05.42 Non-billable Entamebic, entamebiasis Cross-ref See: Amebiasis umbilical cord (s)
O69.82 Non-billable with compression
O69.2 Non-billable around neck
with compression
O69.1 Non-billable Enteralgia Cross-ref See: Pain, abdominal
Enteric Cross-ref See: condition aertrycke infection
A02.0 with
Enterobius vermicularis (infection) (infestation) Code B80 Enterocele Sub-entries see also Hernia, abdomen
pelvic, pelvis (acquired) (congenital)
N81.5 vagina, vaginal (acquired) (congenital) NEC
N81.5 Enterocolitis Sub-entries K52.9 see also Enteritis due to
Clostridioides difficile
not specified as recurrent
A04.72 Enterogastritis Cross-ref See: Enteritis
celiac-gluten-sensitive
K90.0 hemorrhagic, terminal
K55.059 see also Ischemia, intestine, acute Enteroperitonitis Cross-ref See: Peritonitis
Enterospasm Sub-entries see also Syndrome, irritable, bowel
Enterostenosis Code K56.699 See also: Obstruction, intestine, specified NEC Enterostomy Sub-entries
complication see Complication, enterostomy
Enterovirus, as cause of disease classified elsewhere Sub-entries B97.10 Achilles tendinitis see Tendinitis, Achilles
ankle and tarsus
M77.5 Non-billable specified type NEC see Enthesopathy, foot, specified type NEC
anterior tibial syndrome
M76.81 Non-billable Entomophthoromycosis Code B46.8 Entrance, air into vein Cross-ref See: Embolism, air
muscle
eye
extraocular
H50.68 Non-billable oblique
Enucleated eye (traumatic, current) Code S05.7 Non-billable Eosinopenia Cross-ref See: Agranulocytosis
with
angiolymphoid hyperplasia (ALHE)
D18.01 Eosinophilia-myalgia syndrome Code M35.89 Ependymitis (acute) (cerebral) (chronic) (granular) Cross-ref See: Encephalomyelitis Ependymoblastoma Sub-entries
specified site see Neoplasm, malignant, by site
anaplastic
specified site see Neoplasm, malignant, by site
benign
Ephelis, ephelides Code L81.2 Epiblepharon (congenital) Code Q10.3 Epicanthus, epicanthic fold (eyelid) (congenital) Code Q10.3 Epicondylitis (elbow) Sub-entries
lateral
M77.1 Non-billable medial
M77.0 Non-billable Epicystitis Cross-ref See: Cystitis
Epidemic Cross-ref See: condition Epidermidalization, cervix Cross-ref See: Dysplasia, cervix Epidermis, epidermal Cross-ref See: condition Epidermodysplasia verruciformis Code B07.8 bullosa (congenital)
Q81.9 Epidermophytid Cross-ref See: Dermatophytosis
Epidermophytosis (infected) Cross-ref See: Dermatophytosis
Epididymis Cross-ref See: condition blennorrhagic (gonococcal)
A54.23 Epididymo-orchitis Code N45.3 See also: Epididymitis Epidural Cross-ref See: condition Epigastrium, epigastric Cross-ref See: condition Epigastrocele Cross-ref See: Hernia, ventral
Epiglottis Cross-ref See: condition Epiglottitis, epiglottiditis (acute) Sub-entries J05.10 Epilepsia partialis continua Code G40.1 Non-billable See also: Kozhevnikof's epilepsy Note: the following terms are to be considered equivalent to intractable: pharmacoresistant (pharmacologically resistant), treatment resistant, refractory (medically) and poorly controlled
with
complex partial seizures see Epilepsy, localization-related, symptomatic, with complex partial seizures
grand mal seizures on awakening see Epilepsy, generalized, specified NEC
Epipharyngitis Cross-ref See: Nasopharyngitis
Epiphora Sub-entries H04.20 Non-billable due to
excess lacrimation
H04.21 Non-billable insufficient drainage
H04.22 Non-billable Epiphyseal arrest Cross-ref See: Arrest, epiphyseal
Epiphyseolysis, epiphysiolysis Cross-ref See: Osteochondropathy Epiphysitis Sub-entries see also Osteochondropathy
syphilitic (congenital)
A50.02 Epiplocele Cross-ref See: Hernia, abdomen
Epiploitis Cross-ref See: Peritonitis
Epiplosarcomphalocele Cross-ref See: Hernia, umbilicus
depersonalization (in neurotic state)
F48.1 Epispadias (female) (male) Code Q64.0 Epistaxis (multiple) Sub-entries R04.0 Epithelioma (malignant) Sub-entries see also Neoplasm, malignant, by site adenoides cysticum see Neoplasm, skin, benign
basal cell see Neoplasm, skin, malignant
benign see Neoplasm, benign, by site
Bowen's see Neoplasm, skin, in situ
Epitheliomatosis pigmented Code Q82.1 Epitheliopathy, multifocal placoid pigment Code H30.14 Non-billable Epithelium, epithelial Cross-ref See: condition Epituberculosis (with atelectasis) (allergic) Code A15.7 Epstein's Sub-entries
nephrosis or syndrome see Nephrosis
Epulis (gingiva) (fibrous) (giant cell) Code K06.8 Equinovarus (congenital) (talipes) Sub-entries Q66.0 Non-billable acquired see Deformity, limb, clubfoot
Equivalent Sub-entries
convulsive (abdominal) see Epilepsy, specified NEC
epileptic (psychic) see Epilepsy, localization-related, symptomatic, with complex partial seizures
Erb (-Duchenne) paralysis (birth injury) (newborn) Code P14.0 Erb-Goldflam disease or syndrome Sub-entries G70.00 with exacerbation (acute)
G70.01 Erb's Sub-entries
palsy, paralysis (brachial) (birth) (newborn)
P14.0 spinal (spastic) syphilitic
A52.17 pseudohypertrophic muscular dystrophy
G71.02 Erdheim's syndrome (acromegalic macrospondylitis) Code E22.0 Erection, painful (persistent) Cross-ref See: Priapism Ergosterol deficiency (vitamin D) Sub-entries E55.9 Ergotism Sub-entries see also Poisoning, food, noxious, plant
from ergot used as drug (migraine therapy) see Table of Drugs and Chemicals
Erosio interdigitalis blastomycetica Code B37.2 bone see Disorder, bone, density and structure, specified NEC
Error Sub-entries
metabolism, inborn -- se Disorder, metabolism
refractive see Disorder, refraction
Eructation Sub-entries R14.2 nervous or psychogenic
F45.8 drug (generalized) (taken internally)
L27.0 in contact with skin see Dermatitis, due to drugs
Erysipelas (gangrenous) (infantile) (newborn) (phlegmonous) (suppurative) Sub-entries A46 Erysipeloid Sub-entries A26.9 cutaneous (Rosenbach's)
A26.0 annulare (centrifugum) (rheumaticum)
L53.1 arthriticum epidemicum
A25.1 brucellum see Brucellosis
Erythematous, erythematosus Cross-ref See: condition Erythermalgia (primary) Code I73.81 Erythredema (polyneuropathy) Cross-ref See: Poisoning, mercury
Erythremia (acute) Sub-entries C94.0 Non-billable Erythroblastopenia Sub-entries D60.9 see also Aplasia, red cell Erythroblastophthisis Code D61.09 Erythroblastosis (fetalis) (newborn) Sub-entries P55.9 due to
ABO (antibodies) (incompatibility) (isoimmunization)
P55.1 Rh (antibodies) (incompatibility) (isoimmunization)
P55.0 Erythrocyanosis (crurum) Code I73.89 Erythrocythemia Cross-ref See: Erythremia
Erythrocytosis (megalosplenic) (secondary) Sub-entries D75.1 oval, hereditary see Elliptocytosis
Erythroderma (secondary) Sub-entries L53.9 see also Erythema bullous ichthyosiform, congenital
Q80.3 ichthyosiform, congenital (bullous)
Q80.3 Erythrodysesthesia, palmar plantar (PPE) Code L27.1 Erythrogenesis imperfecta Code D61.09 Erythroleukemia Code C94.0 Non-billable Erythromelalgia Code I73.81 Erythrophagocytosis Code D75.89 Erythrophobia Code F40.298 Erythroplakia, oral epithelium, and tongue Code K13.29 Erythroplasia (Queyrat) Sub-entries D07.4 specified site see Neoplasm, skin, in situ
non-O157 Shiga toxin-producing (with known O group)
B96.22 non-Shiga toxin-producing
B96.29 O157 with confirmation of Shiga toxin when H antigen is unknown, or is not H7
B96.21 due to gastrointestinal reflux disease (without bleeding)
K21.00 Esophagomalacia Code K22.89 Esophagostenosis Code K22.2 Esophagostomiasis Code B81.8 Esophagotracheal Cross-ref See: condition Esophagus Cross-ref See: condition Esophoria Sub-entries H50.51 divergence, insufficiency
H51.8 Esotropia Cross-ref See: Strabismus, convergent concomitant
Essential Cross-ref See: condition Esthesioneuroblastoma Code C30.0 Esthesioneurocytoma Code C30.0 Esthesioneuroepithelioma Code C30.0 Estivo-autumnal malaria (fever) Code B50.9 Estrangement (marital) Sub-entries Z63.5 Estriasis Cross-ref See: Myiasis
Ethanolism Cross-ref See: Alcoholism
Etherism Cross-ref See: Dependence, drug, inhalant
Ethmoid, ethmoidal Cross-ref See: condition Ethmoiditis (chronic) (nonpurulent) (purulent) Sub-entries see also Sinusitis, ethmoidal
influenzal see Influenza, with, respiratory manifestations NEC
Ethylism Cross-ref See: Alcoholism
Eulenburg's disease (congenital paramyotonia) Code G71.19 Eunuchoidism Sub-entries E29.1 European blastomycosis Cross-ref See: Cryptococcosis
Eustachian Cross-ref See: condition EVALI (e-cigarette, or vaping, product use associated lung injury) Code U07.0 development state
period of
delayed growth in childhood
Z00.70 Evans syndrome Code D69.41 Event Sub-entries
apparent life threatening in newborn and infant (ALTE)
R68.13 brief resolved unexplained event (BRUE)
R68.13 Eventration Sub-entries see also Hernia, ventral
colon into chest see Hernia, diaphragm
diaphragm (congenital)
Q79.1 foot NEC see also Deformity, valgus, ankle
Evidence Sub-entries
cytologic
of malignancy on anal smear
R85.614 of malignancy on cervical smear
R87.614 of malignancy on vaginal smear
R87.624 Evisceration Sub-entries
traumatic NEC
eye see Enucleated eye
Evulsion Cross-ref See: Avulsion
Ewing's sarcoma or tumor Cross-ref See: Neoplasm, bone, malignant
abuse, physical (alleged), ruled out
Exanthem, exanthema Sub-entries see also Rash with enteroviral vesicular stomatitis
B08.4 epidemic with meningitis
A88.0 alcohol level in blood
R78.0 attrition, tooth, teeth
K03.0 carotene, carotin (dietary)
E67.1 Excitability, abnormal, under minor stress (personality disorder) Code F60.3 Excitation Sub-entries
anomalous atrioventricular
I45.6 reactive (from emotional stress, psychological trauma)
F30.8 Excitement Sub-entries
mental, reactive (from emotional stress, psychological trauma)
F30.8 state, reactive (from emotional stress, psychological trauma)
F30.8 Excoriation (traumatic) Sub-entries see also Abrasion
skin picking disorder
F42.4 due to erythematous conditions according to extent of body surface involved
L49.0 10-19 percent of body surface
L49.1 20-29 percent of body surface
L49.2 30-39 percent of body surface
L49.3 Exfoliative Cross-ref See: condition cardiac see Failure, heart
due to
Exocervicitis Cross-ref See: Cervicitis
Exomphalos Sub-entries Q79.2 meaning hernia see Hernia, umbilicus
Exophoria Sub-entries H50.52 convergence, insufficiency
H51.11 Exophthalmos Sub-entries H05.2 Non-billable constant NEC
H05.24 Non-billable displacement, globe see Displacement, globe
due to thyrotoxicosis (hyperthyroidism) see Hyperthyroidism, with, goiter (diffuse)
Exostosis Sub-entries see also Disorder, bone cartilaginous see Neoplasm, bone, benign
congenital (multiple)
Q78.6 external ear canal
H61.81 Non-billable Exotropia Cross-ref See: Strabismus, divergent concomitant
Explanation of Sub-entries
investigation finding
Z71.2 labor
confirmed
adult forced
T74.61 Non-billable child forced
T74.62 Non-billable Exposure (to) Sub-entries T75.89 Non-billable see also Contact, with Exsanguination Cross-ref See: Hemorrhage
Extensive Cross-ref See: condition Extremity Cross-ref See: condition, limb Extrophy Cross-ref See: Exstrophy Extroversion Sub-entries
complicating delivery
O71.2 Extruded tooth (teeth) Code M26.34 breast implant (prosthetic)
T85.42 Non-billable eye implant (globe) (ball)
T85.328 Non-billable intervertebral disc see Displacement, intervertebral disc
ocular lens implant (prosthetic) see Complications, intraocular lens
Exudate Sub-entries
causing irritant dermatitis
L24.A9 pleural see Effusion, pleura
wound fluids causing irritant dermatitis
L24.A9 Exudative Cross-ref See: condition Eye, eyeball, eyelid Cross-ref See: condition Eyestrain Cross-ref See: Disturbance, vision, subjective
Eyeworm disease of Africa Code B74.3 Source: Centers for Medicare & Medicaid Services, FY 2026 ICD-10-CM Index to Diseases and Injuries release files, effective October 1, 2025 through September 30, 2026.
