ICD-10-CM Alphabetic Index · FY 2026 590 Entries

Cyst in the ICD-10-CM Index ICD-10-CM

The main term Cyst (colloid) (mucous) (simple) (retention) carries 590 index entries pointing to 219 ICD-10-CM codes. Every indented line below refines the term by site, cause, or type. Verify any candidate code in the Tabular List before using it.

✓ Built from the official CMS FY 2026 index fileEffective Oct 1, 2025 – Sep 30, 2026

590

Index Entries

219

Codes Referenced

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Letter

590 of 590 shown

ICD-10-CM

Index Entries Under Cyst 590 entries · 219 codes

Cyst (colloid) (mucous) (simple) (retention)

adenoid (infected) J35.8

adrenal gland E27.8

congenital Q89.1

air, lung J98.4

allantoic Q64.4

alveolar process (jaw bone) M27.40

amnion, amniotic O41.8X- Non-billable

aneurysmal M27.49

chamber (eye) see Cyst, iris

nasopalatine K09.1

antrum J34.1

anus K62.89

apical (tooth) (periodontal) K04.8

appendix K38.8

arachnoid, brain (acquired) G93.0

congenital Q04.6

arytenoid J38.7

Baker's M71.2- Non-billable

ruptured M66.0

tuberculous A18.02

Bartholin's gland N75.0

bile duct (common) (hepatic) K83.5

bladder (multiple) (trigone) N32.89

blue dome (breast) see Cyst, breast

bone (local) NEC M85.60

aneurysmal M85.50

ankle M85.57- Non-billable

foot M85.57- Non-billable

forearm M85.53- Non-billable

hand M85.54- Non-billable

jaw M27.49

lower leg M85.56- Non-billable

multiple site M85.59

neck M85.58

rib M85.58

shoulder M85.51- Non-billable

skull M85.58

specified site NEC M85.58

thigh M85.55- Non-billable

toe M85.57- Non-billable

upper arm M85.52- Non-billable

vertebra M85.58

solitary M85.40

ankle M85.47- Non-billable

fibula M85.46- Non-billable

foot M85.47- Non-billable

hand M85.44- Non-billable

humerus M85.42- Non-billable

jaw M27.49

neck M85.48

pelvis M85.45- Non-billable

radius M85.43- Non-billable

rib M85.48

shoulder M85.41- Non-billable

skull M85.48

specified site NEC M85.48

tibia M85.46- Non-billable

toe M85.47- Non-billable

ulna M85.43- Non-billable

vertebra M85.48

specified type NEC M85.60

ankle M85.67- Non-billable

foot M85.67- Non-billable

forearm M85.63- Non-billable

hand M85.64- Non-billable

jaw M27.40

developmental (nonodontogenic) K09.1

odontogenic K09.0

latent M27.0

lower leg M85.66- Non-billable

multiple site M85.69

neck M85.68

rib M85.68

shoulder M85.61- Non-billable

skull M85.68

specified site NEC M85.68

thigh M85.65- Non-billable

toe M85.67- Non-billable

upper arm M85.62- Non-billable

vertebra M85.68

brain (acquired) G93.0

congenital Q04.6

hydatid B67.99

third ventricle (colloid), congenital Q04.6

branchial (cleft) Q18.0

branchiogenic Q18.0

breast (benign) (blue dome) (pedunculated) (solitary) N60.0- Non-billable

involution see Dysplasia, mammary, specified type NEC

sebaceous see Dysplasia, mammary, specified type NEC

broad ligament (benign) N83.8

bronchogenic (mediastinal) (sequestration) J98.4

congenital Q33.0

buccal K09.8

bulbourethral gland N36.8

bursa, bursal NEC M71.30

with rupture see Rupture, synovium

ankle M71.37- Non-billable

elbow M71.32- Non-billable

foot M71.37- Non-billable

hand M71.34- Non-billable

hip M71.35- Non-billable

multiple sites M71.39

pharyngeal J39.2

popliteal space see Cyst, Baker's

shoulder M71.31- Non-billable

specified site NEC M71.38

wrist M71.33- Non-billable

calcifying odontogenic D16.5

upper jaw (bone) (maxilla) D16.4

canal of Nuck (female) N94.89

congenital Q52.4

canthus see Cyst, conjunctiva

carcinomatous see Neoplasm, malignant, by site

cauda equina G95.89

cavum septi pellucidi see Cyst, brain

celomic (pericardium) Q24.8

cerebellopontine (angle) see Cyst, brain

cerebellum see Cyst, brain

cerebral see Cyst, brain

cervical lateral Q18.0

cervix NEC N88.8

embryonic Q51.6

nabothian N88.8

chiasmal optic NEC see Disorder, optic, chiasm

chocolate (ovary) N80.10- Non-billable

choledochus, congenital Q44.4

chorion O41.8X- Non-billable

choroid plexus G93.0

congenital Q04.6

ciliary body see Cyst, iris

clitoris N90.7

colon K63.89

common (bile) duct K83.5

congenital NEC Q89.89

adrenal gland Q89.1

epiglottis Q31.8

esophagus Q39.8

fallopian tube Q50.4

kidney Q61.00

more than one (multiple) Q61.02

specified as polycystic Q61.3

adult type Q61.2

infantile type NEC Q61.19

collecting duct dilation Q61.11

solitary Q61.01

larynx Q31.8

liver Q44.6

lung Q33.0

mediastinum Q34.1

ovary Q50.1

oviduct Q50.4

periurethral (tissue) Q64.79

prepuce Q55.69

salivary gland (any) Q38.4

sublingual Q38.6

submaxillary gland Q38.6

thymus (gland) Q89.2

tongue Q38.3

ureterovesical orifice Q62.8

vulva Q52.79

conjunctiva H11.44- Non-billable

cornea H18.89- Non-billable

corpora quadrigemina G93.0

corpus

albicans N83.29- Non-billable

luteum (hemorrhagic) (ruptured) N83.1- Non-billable

Cowper's gland (benign) (infected) N36.8

cranial meninges G93.0

craniobuccal pouch E23.6

craniopharyngeal pouch E23.6

cystic duct K82.8

Cysticercus see Cysticercosis

Dandy-Walker Q03.1

with spina bifida see Spina bifida

dental (root) K04.8

developmental K09.0

eruption K09.0

primordial K09.0

dentigerous (mandible) (maxilla) K09.0

dermoid see Neoplasm, benign, by site

with malignant transformation C56.-

implantation

external area or site (skin) NEC L72.0

iris see Cyst, iris, implantation

vagina N89.8

vulva N90.7

mouth K09.8

oral soft tissue K09.8

sacrococcygeal see Cyst, pilonidal

developmental K09.1

odontogenic K09.0

oral region (nonodontogenic) K09.1

ovary, ovarian Q50.1

dura (cerebral) G93.0

spinal G96.198

ear (external) Q18.1

echinococcal see Echinococcus

embryonic

cervix uteri Q51.6

fallopian tube Q50.4

vagina Q52.4

endometrium, endometrial (uterus) N85.8

ectopic see Endometriosis

enterogenous Q43.8

epidermal, epidermoid (inclusion) (see also Cyst, skin) L72.0

mouth K09.8

oral soft tissue K09.8

epididymis N50.3

epiglottis J38.7

epiphysis cerebri E34.8

epithelial (inclusion) L72.0

epoophoron Q50.5

eruption K09.0

esophagus K22.89

ethmoid sinus J34.1

external female genital organs NEC N90.7

eye NEC H57.89

congenital Q15.8

eyelid (sebaceous) H02.829

infected see Hordeolum

left H02.826

lower H02.825

upper H02.824

right H02.823

lower H02.822

upper H02.821

fallopian tube N83.8

congenital Q50.4

fimbrial (twisted) Q50.4

fissural (oral region) K09.1

follicle (graafian) (hemorrhagic) N83.0- Non-billable

nabothian N88.8

follicular (atretic) (hemorrhagic) (ovarian) N83.0- Non-billable

dentigerous K09.0

odontogenic K09.0

skin L72.9

specified NEC L72.8

frontal sinus J34.1

gallbladder K82.8

ganglion see Ganglion

Gartner's duct Q52.4

gingiva K09.0

gland of Moll see Cyst, eyelid

globulomaxillary K09.1

graafian follicle (hemorrhagic) N83.0- Non-billable

granulosal lutein (hemorrhagic) N83.1- Non-billable

hemangiomatous D18.00

intra-abdominal D18.03

intracranial D18.02

skin D18.01

specified site NEC D18.09

hemorrhagic M27.49

hydatid B67.90 see also Echinococcus

brain B67.99

liver B67.8 see also Cyst, liver, hydatid

lung NEC B67.99

Morgagni

female Q50.5

male (epididymal) Q55.4

testicular Q55.29

specified site NEC B67.99

hymen N89.8

embryonic Q52.4

hypopharynx J39.2

hypophysis, hypophyseal (duct) (recurrent) E23.6

cerebri E23.6

implantation (dermoid)

external area or site (skin) NEC L72.0

iris see Cyst, iris, implantation

vagina N89.8

vulva N90.7

incisive canal K09.1

inclusion (epidermal) (epithelial) (epidermoid) (squamous) L72.0

not of skin - code under Cyst, by site

intestine (large) (small) K63.89

intracranial see Cyst, brain

intraligamentous see also Disorder, ligament

knee see Derangement, knee

intrasellar E23.6

iris H21.309

exudative H21.31- Non-billable

idiopathic H21.30- Non-billable

implantation H21.32- Non-billable

parasitic H21.33- Non-billable

pars plana (primary) H21.34- Non-billable

exudative H21.35- Non-billable

jaw (bone) M27.40

aneurysmal M27.49

hemorrhagic M27.49

traumatic M27.49

developmental (odontogenic) K09.0

fissural K09.1

joint NEC see Disorder, joint, specified type NEC

kidney N28.1

acquired N28.1

calyceal see Hydronephrosis

congenital Q61.00

more than one (multiple) Q61.02

specified as polycystic Q61.3

adult type (autosomal dominant) Q61.2

infantile type (autosomal recessive) NEC Q61.19

collecting duct dilation Q61.11

pyelogenic see Hydronephrosis

simple N28.1

solitary (single) N28.1

acquired N28.1

congenital Q61.01

labium (majus) (minus) N90.7

sebaceous N90.7

lacrimal see also Disorder, lacrimal system, specified NEC

gland H04.13- Non-billable

passages or sac see Disorder, lacrimal system, specified NEC

larynx J38.7

lateral periodontal K09.0

lens H27.8

congenital Q12.8

lip (gland) K13.0

liver (idiopathic) (simple) K76.89

congenital Q44.6

hydatid B67.8

granulosus B67.0

multilocularis B67.5

lung J98.4

congenital Q33.0

giant bullous J43.9

lutein N83.1- Non-billable

lymphangiomatous D18.1

lymphoepithelial, oral soft tissue K09.8

macula see Degeneration, macula, hole

malignant see Neoplasm, malignant, by site

mammary gland see Cyst, breast

mandible M27.40

dentigerous K09.0

radicular K04.8

maxilla M27.40

dentigerous K09.0

radicular K04.8

medial, face and neck Q18.8

median

anterior maxillary K09.1

palatal K09.1

mediastinum, congenital Q34.1

meibomian (gland) see Chalazion

infected see Hordeolum

membrane, brain G93.0

meninges (cerebral) G93.0

spinal G96.198

meniscus, knee see Derangement, knee, meniscus, cystic

mesentery, mesenteric K66.8

chyle I89.8

mesonephric duct

female Q50.5

male Q55.4

milk N64.89

Morgagni (hydatid)

female Q50.5

male (epididymal) Q55.4

testicular Q55.29

mouth K09.8

Müllerian duct Q50.4

appendix testis Q55.29

cervix Q51.6

fallopian tube Q50.4

female Q50.4

male Q55.29

prostatic utricle Q55.4

vagina (embryonal) Q52.4

multilocular (ovary) D39.10

benign see Neoplasm, benign, by site

myometrium N85.8

nabothian (follicle) (ruptured) N88.8

nasoalveolar K09.1

nasolabial K09.1

nasopalatine (anterior) (duct) K09.1

nasopharynx J39.2

neoplastic see Neoplasm, uncertain behavior, by site

benign see Neoplasm, benign, by site

nerve root

cervical G96.191

lumbar G96.191

sacral G96.191

thoracic G96.191

nervous system NEC G96.89

neuroenteric (congenital) Q06.8

nipple see Cyst, breast

nose (turbinates) J34.1

sinus J34.1

odontogenic, developmental K09.0

omentum (lesser) K66.8

congenital Q45.8

ora serrata see Cyst, retina, ora serrata

oral

region K09.9

developmental (nonodontogenic) K09.1

specified NEC K09.8

soft tissue K09.9

specified NEC K09.8

orbit H05.81- Non-billable

ovary, ovarian (twisted) N83.20- Non-billable

adherent N83.20- Non-billable

chocolate N80.10- Non-billable

corpus

albicans N83.29- Non-billable

luteum (hemorrhagic) N83.1- Non-billable

dermoid D27.9

developmental Q50.1

due to failure of involution NEC N83.20- Non-billable

endometrial N80.10- Non-billable

follicular (graafian) (hemorrhagic) N83.0- Non-billable

hemorrhagic N83.20- Non-billable

in pregnancy or childbirth O34.8- Non-billable

with obstructed labor O65.5

multilocular D39.10

pseudomucinous D27.9

retention N83.29- Non-billable

serous N83.20- Non-billable

specified NEC N83.29- Non-billable

theca lutein (hemorrhagic) N83.1- Non-billable

tuberculous A18.18

oviduct N83.8

palate (median) (fissural) K09.1

palatine papilla (jaw) K09.1

pancreas, pancreatic (hemorrhagic) (true) K86.2

congenital Q45.2

false K86.3

paralabral

hip M24.85- Non-billable

shoulder S43.43- Non-billable

paramesonephric duct Q50.4

female Q50.4

male Q55.29

paranephric N28.1

paraphysis, cerebri, congenital Q04.6

parasitic B89

parathyroid (gland) E21.4

paratubal N83.8

paraurethral duct N36.8

paroophoron Q50.5

parotid gland K11.6

parovarian Q50.5

pelvis, female N94.89

in pregnancy or childbirth O34.8- Non-billable

causing obstructed labor O65.5

penis (sebaceous) N48.89

periapical K04.8

pericardial (congenital) Q24.8

acquired (secondary) I31.8

pericoronal K09.0

perineural G96.191

periodontal K04.8

lateral K09.0

peripelvic (lymphatic) N28.1

peritoneum K66.8

chylous I89.8

periventricular, acquired, newborn P91.1

pharynx (wall) J39.2

pilar L72.11

pilonidal (infected) (rectum) L05.91

with abscess L05.01

malignant C44.59- Non-billable

pituitary (duct) (gland) E23.6

placenta O43.19- Non-billable

pleura J94.8

popliteal see Cyst, Baker's

porencephalic Q04.6

acquired G93.0

postanal (infected) see Cyst, pilonidal

postmastoidectomy cavity (mucosal) see Complications, postmastoidectomy, cyst

preauricular Q18.1

prepuce N47.4

congenital Q55.69

primordial (jaw) K09.0

prostate N42.83

pseudomucinous (ovary) D27.9

pupillary, miotic H21.27- Non-billable

radicular (residual) K04.8

radiculodental K04.8

ranular K11.8

Rathke's pouch E23.6

rectum (epithelium) (mucous) K62.89

renal see Cyst, kidney

residual (radicular) K04.8

retention (ovary) N83.29- Non-billable

salivary gland K11.6

retina H33.19- Non-billable

ora serrata H33.11- Non-billable

parasitic H33.12- Non-billable

retroperitoneal K68.9

sacrococcygeal (dermoid) see Cyst, pilonidal

salivary gland or duct (mucous extravasation or retention) K11.6

Sampson's N80.10- Non-billable

sclera H15.89

scrotum L72.9

sebaceous L72.3

sebaceous (duct) (gland) L72.3

breast see Dysplasia, mammary, specified type NEC

eyelid see Cyst, eyelid

genital organ NEC

female N94.89

male N50.89

scrotum L72.3

semilunar cartilage (knee) (multiple) see Derangement, knee, meniscus, cystic

seminal vesicle N50.89

serous (ovary) N83.20- Non-billable

sinus (accessory) (nasal) J34.1

Skene's gland N36.8

skin L72.9

breast see Dysplasia, mammary, specified type NEC

epidermal, epidermoid L72.0

epithelial L72.0

eyelid see Cyst, eyelid

genital organ NEC

female N90.7

male N50.89

inclusion L72.0

scrotum L72.9

sebaceous L72.3

sweat gland or duct L74.8

solitary

bone see Cyst, bone, solitary

jaw M27.40

kidney N28.1

spermatic cord N50.89

sphenoid sinus J34.1

spinal meninges G96.198

spleen NEC D73.4

congenital Q89.09

hydatid B67.99 see also Echinococcus

Stafne's M27.0

subarachnoid intrasellar R93.0

subcutaneous, pheomycotic (chromomycotic) B43.2

subdural (cerebral) G93.0

spinal cord G96.198

sublingual gland K11.6

submandibular gland K11.6

submaxillary gland K11.6

suburethral N36.8

suprarenal gland E27.8

suprasellar see Cyst, brain

sweat gland or duct L74.8

synovial see also Cyst, bursa

ruptured see Rupture, synovium

Tarlov G96.191

tarsal see Chalazion

tendon (sheath) see Disorder, tendon, specified type NEC

testis N44.2

tunica albuginea N44.1

theca lutein (ovary) N83.1- Non-billable

Thornwaldt's J39.2

thymus (gland) E32.8

thyroglossal duct (infected) (persistent) Q89.2

thyrolingual duct (infected) (persistent) Q89.2

thyroid (gland) E04.1

tongue K14.8

tonsil J35.8

tooth see Cyst, dental

Tornwaldt's J39.2

trichilemmal (proliferating) L72.12

trichodermal L72.12

tubal (fallopian) N83.8

inflammatory see Salpingitis, chronic

tubo-ovarian N83.8

inflammatory N70.13

tunica

albuginea testis N44.1

vaginalis N50.89

turbinate (nose) J34.1

Tyson's gland N48.89

urachus, congenital Q64.4

ureter N28.89

ureterovesical orifice N28.89

urethra, urethral (gland) N36.8

uterine ligament N83.8

uterus (body) (corpus) (recurrent) N85.8

embryonic Q51.818

cervix Q51.6

vagina, vaginal (implantation) (inclusion) (squamous cell) (wall) N89.8

embryonic Q52.4

vallecula, vallecular (epiglottis) J38.7

vesical (orifice) N32.89

vitreous body H43.89

vulva (implantation) (inclusion) N90.7

congenital Q52.79

sebaceous gland N90.7

vulvovaginal gland N90.7

wolffian

female Q50.5

male Q55.4

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Related Index Terms

Chalazion Derangement Dysplasia Endometriosis All index terms starting with C Index to Diseases and Injuries ICD-10-CM Code Lookup

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.