ICD-10-CM Alphabetic Index · FY 2026 567 Entries
Abscess in the ICD-10-CM Index ICD-10-CM
The main term Abscess (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic) carries 567 index entries pointing to 178 ICD-10-CM codes. The default entry is L02.91, the code the bare main term maps to; 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
567
Index Entries
178
Codes Referenced
L02.91
Default Code
A
Letter
567 of 567 shown
ICD-10-CM
Index Entries Under Abscess 567 entries · 178 codes
Abscess (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic) L02.91
with
diverticular disease (intestine) K57.80
with bleeding K57.81
large intestine K57.20
with
bleeding K57.21
small intestine K57.40
with bleeding K57.41
small intestine K57.00
with
bleeding K57.01
large intestine K57.40
with bleeding K57.41
lymphangitis - code by site under Abscess
abdomen, abdominal
cavity K65.1
wall L02.211
abdominopelvic K65.1
accessory sinus see Sinusitis
adrenal (capsule) (gland) E27.8
alveolar K04.7
with sinus K04.6
amebic A06.4
brain (and liver or lung abscess) A06.6
genitourinary tract A06.82
liver (without mention of brain or lung abscess) A06.4
lung (and liver) (without mention of brain abscess) A06.5
specified site NEC A06.89
spleen A06.89
anerobic A48.0
ankle see Abscess, lower limb
anorectal K61.2
antecubital space see Abscess, upper limb
antrum (chronic) (Highmore) see Sinusitis, maxillary
anus K61.0
apical (tooth) K04.7
with sinus (alveolar) K04.6
appendix K35.33
areola (acute) (chronic) (nonpuerperal) N61.1
puerperal, postpartum or gestational see Infection, nipple
arm (any part) see Abscess, upper limb
artery (wall) I77.89
atheromatous I77.2
auricle, ear see Abscess, ear, external
axilla (region) L02.41- Non-billable
lymph gland or node L04.2
back (any part, except buttock and flank) L02.212
Bartholin's gland N75.1
with
abortion see Abortion, by type complicated by, sepsis
ectopic or molar pregnancy O08.0
following ectopic or molar pregnancy O08.0
Bezold's see Mastoiditis, acute
bilharziasis B65.1
bladder (wall) see Cystitis, specified type NEC
bone (subperiosteal) see also Osteomyelitis, specified type NEC
accessory sinus (chronic) see Sinusitis
chronic or old see Osteomyelitis, chronic
jaw (lower) (upper) M27.2
mastoid see Mastoiditis, acute, subperiosteal
petrous see Petrositis
spinal (tuberculous) A18.01
nontuberculous see Osteomyelitis, vertebra
bowel K63.0
brain (any part) (cystic) (otogenic) G06.0
amebic (with abscess of any other site) A06.6
gonococcal A54.82
pheomycotic (chromomycotic) B43.1
tuberculous A17.81
breast (acute) (chronic) (nonpuerperal) N61.1
newborn P39.0
puerperal, postpartum, gestational see Mastitis, obstetric, purulent
broad ligament N73.2
acute N73.0
chronic N73.1
Brodie's (localized) (chronic) M86.8X- Non-billable
bronchi J98.09
buccal cavity K12.2
bulbourethral gland N34.0
bursa M71.00
ankle M71.07- Non-billable
elbow M71.02- Non-billable
foot M71.07- Non-billable
hand M71.04- Non-billable
hip M71.05- Non-billable
knee M71.06- Non-billable
multiple sites M71.09
pharyngeal J39.1
shoulder M71.01- Non-billable
specified site NEC M71.08
wrist M71.03- Non-billable
buttock L02.31
canthus see Blepharoconjunctivitis
cartilage see Disorder, cartilage, specified type NEC
cecum K35.33
cerebellum, cerebellar G06.0
sequelae G09
cerebral (embolic) G06.0
sequelae G09
cervical (meaning neck) L02.11
lymph gland or node L04.0
cervix (stump) (uteri) see Cervicitis
cheek (external) L02.01
inner K12.2
chest J86.9
with fistula J86.0
wall L02.213
chin L02.01
choroid see Inflammation, chorioretinal
circumtonsillar J36
cold (lung) (tuberculous) see also Tuberculosis, abscess, lung
articular see Tuberculosis, joint
colon (wall) K63.0
colostomy K94.02
conjunctiva see Conjunctivitis, acute
cornea H16.31- Non-billable
corpus
cavernosum N48.21
luteum see Oophoritis
Cowper's gland N34.0
cranium G06.0
cul-de-sac (Douglas') (posterior) see Peritonitis, pelvic, female
cutaneous see Abscess, by site
dental K04.7
with sinus (alveolar) K04.6
dentoalveolar K04.7
with sinus K04.6
diaphragm, diaphragmatic K65.1
Douglas' cul-de-sac or pouch see Peritonitis, pelvic, female
Dubois A50.59
ear (middle) see also Otitis, media, suppurative
acute see Otitis, media, suppurative, acute
external H60.0- Non-billable
entamebic see Abscess, amebic
enterostomy K94.12
epididymis N45.4
epidural G06.2
brain G06.0
spinal cord G06.1
epiglottis J38.7
epiploon, epiploic K65.1
erysipelatous see Erysipelas
esophagus K20.80
ethmoid (bone) (chronic) (sinus) J32.2
external auditory canal see Abscess, ear, external
extradural G06.2
brain G06.0
sequelae G09
spinal cord G06.1
extraperitoneal K68.19
eye see Endophthalmitis, purulent
eyelid H00.03- Non-billable
face (any part, except ear, eye and nose) L02.01
fallopian tube see Salpingitis
fascia M72.8
fauces J39.1
fecal K63.0
femoral (region) see Abscess, lower limb
filaria, filarial see Infestation, filarial
finger (any) see also Abscess, hand
nail see Cellulitis, finger
flank L02.217
foot L02.61- Non-billable
forehead L02.01
frontal sinus (chronic) J32.1
gallbladder K81.0
genital organ or tract
female (external) N76.4
male N49.9
multiple sites N49.8
specified NEC N49.8
gestational mammary O91.11- Non-billable
gestational subareolar O91.11- Non-billable
gingival
aggressive K05.20
generalized K05.229
moderate K05.222
severe K05.223
slight K05.221
localized K05.219
moderate K05.212
severe K05.213
slight K05.211
gland, glandular (lymph) (acute) see Lymphadenitis, acute
gluteal (region) L02.31
gonorrheal see Gonococcus
groin L02.214
gum
aggressive K05.20
generalized K05.229
moderate K05.222
severe K05.223
slight K05.221
localized K05.219
moderate K05.212
severe K05.213
slight K05.211
hand L02.51- Non-billable
head NEC L02.811
face (any part, except ear, eye and nose) L02.01
heart see Carditis
heel see Abscess, foot
helminthic see Infestation, helminth
hepatic (cholangitic) (hematogenic) (lymphogenic) (pylephlebitic) K75.0
amebic A06.4
hip (region) see Abscess, lower limb
horseshoe K61.31
ileocecal K35.33
ileostomy (bud) K94.12
iliac (region) L02.214
fossa K35.33
infraclavicular (fossa) see Abscess, upper limb
inguinal (region) L02.214
lymph gland or node L04.1
intersphincteric K61.4
intestine, intestinal NEC K63.0
rectal K61.1
intra-abdominal K65.1 see also Abscess, peritoneum
following procedure T81.43 Non-billable
obstetrical O86.03
postprocedural T81.43 Non-billable
retroperitoneal K68.11
intracranial G06.0
intramammary see Abscess, breast
intramuscular, following procedure T81.42 Non-billable
obstetrical O86.02
intraorbital see Abscess, orbit
intraperitoneal K65.1
intrasphincteric (anus) K61.4
intraspinal G06.1
intratonsillar J36
ischiorectal (fossa) (specified NEC) K61.39
jaw (bone) (lower) (upper) M27.2
joint see Arthritis, pyogenic or pyemic
spine (tuberculous) A18.01
nontuberculous see Spondylopathy, infective
kidney N15.1
with calculus N20.0
with hydronephrosis N13.6
puerperal (postpartum) O86.21
knee see also Abscess, lower limb
joint M00.9
labium (majus) (minus) N76.4
lacrimal
caruncle see Inflammation, lacrimal, passages, acute
gland see Dacryoadenitis
passages (duct) (sac) see Inflammation, lacrimal, passages, acute
lacunar N34.0
larynx J38.7
lateral (alveolar) K04.7
with sinus K04.6
leg (any part) see Abscess, lower limb
lens H27.8
lingual K14.0
tonsil J36
lip K13.0
Littre's gland N34.0
liver (cholangitic) (hematogenic) (lymphogenic) (pylephlebitic) (pyogenic) K75.0
amebic (due to Entamoeba histolytica) (dysenteric) (tropical) A06.4
with
brain abscess (and liver or lung abscess) A06.6
lung abscess A06.5
loin (region) L02.211
lower limb L02.41- Non-billable
lumbar (tuberculous) A18.01
nontuberculous L02.212
lung (miliary) (putrid) J85.2
with pneumonia J85.1
due to specified organism (see Pneumonia, in (due to))
amebic (with liver abscess) A06.5
with
brain abscess A06.6
pneumonia A06.5
lymph, lymphatic, gland or node (acute) see also Lymphadenitis, acute
mesentery I88.0
malar M27.2
mammary gland see Abscess, breast
marginal, anus K61.0
mastoid see Mastoiditis, acute
maxilla, maxillary M27.2
molar (tooth) K04.7
with sinus K04.6
premolar K04.7
sinus (chronic) J32.0
mediastinum J85.3
meibomian gland see Hordeolum
meninges G06.2
mesentery, mesenteric K65.1
mesosalpinx see Salpingitis
mons pubis L02.215
mouth (floor) K12.2
muscle see Myositis, infective
myocardium I40.0
nabothian (follicle) see Cervicitis
nasal J32.9
nasopharyngeal J39.1
newborn P38.9
with mild hemorrhage P38.1
without hemorrhage P38.9
neck (region) L02.11
lymph gland or node L04.0
nephritic see Abscess, kidney
nipple N61.1
associated with
lactation see Pregnancy, complicated by
pregnancy see Pregnancy, complicated by
nose (external) (fossa) (septum) J34.0
sinus (chronic) see Sinusitis
omentum K65.1
operative wound T81.49 Non-billable
orbit, orbital see Cellulitis, orbit
otogenic G06.0
ovary, ovarian (corpus luteum) see Oophoritis
oviduct see Oophoritis
palate (soft) K12.2
hard M27.2
palmar (space) see Abscess, hand
pancreas (duct) see Pancreatitis, acute
parafrenal N48.21
parametric, parametrium N73.2
acute N73.0
chronic N73.1
paranephric N15.1
parapancreatic see Pancreatitis, acute
parapharyngeal J39.0
pararectal K61.1
parasinus see Sinusitis
parauterine N73.2 see also Disease, pelvis, inflammatory
paravaginal see Vaginitis
parietal region (scalp) L02.811
parodontal see Periodontitis, aggressive, localized
parotid (duct) (gland) K11.3
region K12.2
pectoral (region) L02.213
pelvis, pelvic
female see Disease, pelvis, inflammatory
male, peritoneal K65.1
penis N48.21
gonococcal (accessory gland) (periurethral) A54.1
perianal K61.0
periapical K04.7
with sinus (alveolar) K04.6
periappendicular K35.33
pericardial I30.1
pericecal K35.33
pericemental see Periodontitis, aggressive, localized
pericholecystic see Cholecystitis, acute
pericoronal see Periodontitis, aggressive, localized
peridental see Periodontitis, aggressive, localized
perimetric N73.2 see also Disease, pelvis, inflammatory
perinephric, perinephritic see Abscess, kidney
perineum, perineal (superficial) L02.215
urethra N34.0
periodontal (parietal) see Periodontitis, aggressive, localized
apical K04.7
periosteum, periosteal see also Osteomyelitis, specified type NEC
with osteomyelitis see also Osteomyelitis, specified type NEC
acute see Osteomyelitis, acute
chronic see Osteomyelitis, chronic
peripharyngeal J39.0
peripleuritic J86.9
with fistula J86.0
periprostatic N41.2
perirectal K61.1
perirenal (tissue) see Abscess, kidney
perisinuous (nose) see Sinusitis
peritoneum, peritoneal (perforated) (ruptured) K65.1
with appendicitis K35.33 see also Appendicitis
pelvic
female see Peritonitis, pelvic, female
male K65.1
postoperative T81.43 Non-billable
puerperal, postpartum, childbirth O85
tuberculous A18.31
peritonsillar J36
perityphlic K35.33
periureteral N28.89
periurethral N34.0
gonococcal (accessory gland) (periurethral) A54.1
periuterine N73.2 see also Disease, pelvis, inflammatory
perivesical see Cystitis, specified type NEC
petrous bone see Petrositis
phagedenic NOS L02.91
chancroid A57
pharynx, pharyngeal (lateral) J39.1
pilonidal L05.01
pituitary (gland) E23.6
pleura J86.9
with fistula J86.0
popliteal see Abscess, lower limb
postcecal K35.33
postlaryngeal J38.7
postnasal J34.0
retroperitoneal K68.11
postpharyngeal J39.0
posttonsillar J36
post-typhoid A01.09
pouch of Douglas see Peritonitis, pelvic, female
premammary see Abscess, breast
prepatellar see Abscess, lower limb
presacral K68.19
prostate N41.2
gonococcal (acute) (chronic) A54.22
psoas muscle K68.12
puerperal - code by site under Puerperal, abscess
pulmonary see Abscess, lung
pulp, pulpal (dental) K04.01
irreversible K04.02
reversible K04.01
rectovaginal septum K63.0
rectovesical see Cystitis, specified type NEC
rectum K61.1
renal see Abscess, kidney
retina see Inflammation, chorioretinal
retrobulbar see Abscess, orbit
retrocecal K65.1
retrolaryngeal J38.7
retromammary see Abscess, breast
retroperitoneal NEC K68.19
postprocedural K68.11
retropharyngeal J39.0
retrouterine see Peritonitis, pelvic, female
retrovesical see Cystitis, specified type NEC
root, tooth K04.7
with sinus (alveolar) K04.6
round ligament N73.2 see also Disease, pelvis, inflammatory
rupture (spontaneous) NOS L02.91
sacrum (tuberculous) A18.01
nontuberculous M46.28
salivary (duct) (gland) K11.3
scalp (any part) L02.811
scapular see Osteomyelitis, specified type NEC
sclera see Scleritis
scrofulous (tuberculous) A18.2
scrotum N49.2
seminal vesicle N49.0
septal, dental K04.7
with sinus (alveolar) K04.6
serous see Periostitis
shoulder (region) see Abscess, upper limb
sigmoid K63.0
sinus (accessory) (chronic) (nasal) see also Sinusitis
intracranial venous (any) G06.0
Skene's duct or gland N34.0
skin see Abscess, by site
specified site NEC L02.818
spermatic cord N49.1
sphenoidal (sinus) (chronic) J32.3
spinal cord (any part) (staphylococcal) G06.1
tuberculous A17.81
spine (column) (tuberculous) A18.01
epidural G06.1
nontuberculous see Osteomyelitis, vertebra
spleen D73.3
amebic A06.89
stitch T81.41 Non-billable
following an obstetrical procedure O86.01
subarachnoid G06.2
brain G06.0
spinal cord G06.1
subareolar see Abscess, breast
subcecal K35.33
subcutaneous see also Abscess, by site
following procedure T81.41 Non-billable
obstetrical O86.01
pheomycotic (chromomycotic) B43.2
subdiaphragmatic K65.1
subdural G06.2
brain G06.0
sequelae G09
spinal cord G06.1
sub-fascial, following an obstetrical procedure O86.02
subgaleal L02.811
subhepatic K65.1
sublingual K12.2
gland K11.3
submammary see Abscess, breast
submandibular (region) (space) (triangle) K12.2
gland K11.3
submaxillary (region) L02.01
gland K11.3
submental L02.01
gland K11.3
subperiosteal see Osteomyelitis, specified type NEC
subphrenic K65.1
following an obstetrical procedure O86.03
postoperative T81.43 Non-billable
suburethral N34.0
sudoriparous L75.8
supraclavicular (fossa) see Abscess, upper limb
supralevator K61.5
suprapelvic, acute N73.0
suprarenal (capsule) (gland) E27.8
sweat gland L74.8
tear duct see Inflammation, lacrimal, passages, acute
temple L02.01
temporal region L02.01
temporosphenoidal G06.0
tendon (sheath) M65.00
ankle M65.07- Non-billable
foot M65.07- Non-billable
forearm M65.03- Non-billable
hand M65.04- Non-billable
lower leg M65.06- Non-billable
pelvic region M65.05- Non-billable
shoulder region M65.01- Non-billable
specified site NEC M65.08
thigh M65.05- Non-billable
upper arm M65.02- Non-billable
testis N45.4
thigh see Abscess, lower limb
thorax J86.9
with fistula J86.0
throat J39.1
thumb see also Abscess, hand
nail see Cellulitis, finger
thymus (gland) E32.1
thyroid (gland) E06.0
toe (any) see also Abscess, foot
nail see Cellulitis, toe
tongue (staphylococcal) K14.0
tonsil (s) (lingual) J36
tonsillopharyngeal J36
tooth, teeth (root) K04.7
with sinus (alveolar) K04.6
supporting structures NEC see Periodontitis, aggressive, localized
trachea J39.8
trunk L02.219
abdominal wall L02.211
back L02.212
chest wall L02.213
groin L02.214
perineum L02.215
umbilicus L02.216
tubal see Salpingitis
tuberculous see Tuberculosis, abscess
tubo-ovarian see Salpingo-oophoritis
tunica vaginalis N49.1
umbilicus L02.216
upper
limb L02.41- Non-billable
respiratory J39.8
urethral (gland) N34.0
urinary N34.0
uterus, uterine (wall) see also Endometritis
ligament N73.2 see also Disease, pelvis, inflammatory
neck see Cervicitis
uvula K12.2
vagina (wall) see Vaginitis
vaginorectal see Vaginitis
vas deferens N49.1
vermiform appendix K35.33
vertebra (column) (tuberculous) A18.01
nontuberculous see Osteomyelitis, vertebra
vesical see Cystitis, specified type NEC
vesico-uterine pouch see Peritonitis, pelvic, female
vitreous (humor) see Endophthalmitis, purulent
vocal cord J38.3
von Bezold's see Mastoiditis, acute
vulva N76.4
vulvovaginal gland N75.1
web space see Abscess, hand
wound T81.49 Non-billable
wrist see Abscess, upper limb
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Related Index Terms
BlepharoconjunctivitisCholecystitisInfestationLymphadenitisMyositisAll index terms starting with AIndex to Diseases and InjuriesICD-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.
