ICD-10-CM 2027
ICD-10 code for abscess
From the official ICD-10-CM alphabetic index entry “Abscess (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic)”. Page updated September 29, 2026.
About coding abscess
The ICD-10-CM code for abscess is L02.91 (Cutaneous abscess, unspecified). The official index lists 223+ more specific codes, so check the documentation for details such as type, cause, site or severity before settling on L02.91.
Within L02.9, choose L02.91 (Cutaneous abscess, unspecified) only when documentation doesn't support a more specific option: furuncle, unspecified (L02.92) and carbuncle, unspecified (L02.93).
Use an additional code to identify organism (B95-B96).
As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.
More specific abscess codes (official index)
- with
- diverticular disease (intestine) K57.80 — Diverticulitis of intestine, part unspecified, with perforation and abscess without bleeding
- with bleeding K57.81 — Diverticulitis of intestine, part unspecified, with perforation and abscess with bleeding
- large intestine K57.20 — Diverticulitis of large intestine with perforation and abscess without bleeding
- with
- bleeding K57.21 — Diverticulitis of large intestine with perforation and abscess with bleeding
- small intestine K57.40 — Diverticulitis of both small and large intestine with perforation and abscess without bleeding
- with bleeding K57.41 — Diverticulitis of both small and large intestine with perforation and abscess with bleeding
- small intestine K57.00 — Diverticulitis of small intestine with perforation and abscess without bleeding
- with
- bleeding K57.01 — Diverticulitis of small intestine with perforation and abscess with bleeding
- large intestine K57.40 — Diverticulitis of both small and large intestine with perforation and abscess without bleeding
- with bleeding K57.41 — Diverticulitis of both small and large intestine with perforation and abscess with bleeding
- lymphangitis - code by site under Abscess
- abdomen, abdominal
- cavity K65.1 — Peritoneal abscess
- wall L02.211 — Cutaneous abscess of abdominal wall
- abdominopelvic K65.1 — Peritoneal abscess
- accessory sinus
- adrenal (capsule) (gland) E27.8 — Other specified disorders of adrenal gland
- alveolar K04.7 — Periapical abscess without sinus
- with sinus K04.6 — Periapical abscess with sinus
- amebic A06.4 — Amebic liver abscess
- brain (and liver or lung abscess) A06.6 — Amebic brain abscess
- genitourinary tract A06.82 — Other amebic genitourinary infections
- liver (without mention of brain or lung abscess) A06.4 — Amebic liver abscess
- lung (and liver) (without mention of brain abscess) A06.5 — Amebic lung abscess
- specified site NEC A06.89 — Other amebic infections
- spleen A06.89 — Other amebic infections
- anerobic A48.0 — Gas gangrene
- ankle
- anorectal K61.2 — Anorectal abscess
- antecubital space
- antrum (chronic) (Highmore)
- anus K61.0 — Anal abscess
- apical (tooth) K04.7 — Periapical abscess without sinus
- with sinus (alveolar) K04.6 — Periapical abscess with sinus
- appendix K35.33 — Acute appendicitis with perforation, localized peritonitis, and gangrene, with abscess
- areola (acute) (chronic) (nonpuerperal) N61.1 — Abscess of the breast and nipple
- puerperal, postpartum or gestational
- arm (any part)
- artery (wall) I77.89 — Other specified disorders of arteries and arterioles
- atheromatous I77.2 — Rupture of artery
- auricle, ear
- axilla (region) L02.41 — Cutaneous abscess of limb
- lymph gland or node L04.2 — Acute lymphadenitis of upper limb
- back (any part, except buttock and flank) L02.212 — Cutaneous abscess of back [any part, except buttock and flank]
- Bartholin's gland N75.1 — Abscess of Bartholin's gland
- with
- abortion
- ectopic or molar pregnancy O08.0 — Genital tract and pelvic infection following ectopic and molar pregnancy
- following ectopic or molar pregnancy O08.0 — Genital tract and pelvic infection following ectopic and molar pregnancy
- Bezold's
- bilharziasis B65.1 — Schistosomiasis due to Schistosoma mansoni [intestinal schistosomiasis]
- bladder (wall)
- bone (subperiosteal)
- accessory sinus (chronic)
- chronic or old
- jaw (lower) (upper) M27.2 — Inflammatory conditions of jaws
- mastoid
- petrous
- spinal (tuberculous) A18.01 — Tuberculosis of spine
- nontuberculous
- bowel K63.0 — Abscess of intestine
- brain (any part) (cystic) (otogenic) G06.0 — Intracranial abscess and granuloma
- amebic (with abscess of any other site) A06.6 — Amebic brain abscess
- gonococcal A54.82 — Gonococcal brain abscess
- pheomycotic (chromomycotic) B43.1 — Pheomycotic brain abscess
- tuberculous A17.81 — Tuberculoma of brain and spinal cord
- breast (acute) (chronic) (nonpuerperal) N61.1 — Abscess of the breast and nipple
- newborn P39.0 — Neonatal infective mastitis
- puerperal, postpartum, gestational
- broad ligament N73.2 — Unspecified parametritis and pelvic cellulitis
- acute N73.0 — Acute parametritis and pelvic cellulitis
- chronic N73.1 — Chronic parametritis and pelvic cellulitis
- Brodie's (localized) (chronic) M86.8X — Other osteomyelitis
- bronchi J98.09 — Other diseases of bronchus, not elsewhere classified
- buccal cavity K12.2 — Cellulitis and abscess of mouth
- bulbourethral gland N34.0 — Urethral abscess
- bursa M71.00 — Abscess of bursa, unspecified site
- ankle M71.07 — Abscess of bursa, ankle and foot
- elbow M71.02 — Abscess of bursa, elbow
- foot M71.07 — Abscess of bursa, ankle and foot
- hand M71.04 — Abscess of bursa, hand
- hip M71.05 — Abscess of bursa, hip
- knee M71.06 — Abscess of bursa, knee
- multiple sites M71.09 — Abscess of bursa, multiple sites
- pharyngeal J39.1 — Other abscess of pharynx
- shoulder M71.01 — Abscess of bursa, shoulder
- specified site NEC M71.08 — Abscess of bursa, other site
- wrist M71.03 — Abscess of bursa, wrist
- buttock L02.31 — Cutaneous abscess of buttock
- canthus
- cartilage
- cecum K35.33 — Acute appendicitis with perforation, localized peritonitis, and gangrene, with abscess
- cerebellum, cerebellar G06.0 — Intracranial abscess and granuloma
- sequelae G09 — Sequelae of inflammatory diseases of central nervous system
- cerebral (embolic) G06.0 — Intracranial abscess and granuloma
- sequelae G09 — Sequelae of inflammatory diseases of central nervous system
- cervical (meaning neck) L02.11 — Cutaneous abscess of neck
- lymph gland or node L04.0 — Acute lymphadenitis of face, head and neck
- cervix (stump) (uteri)
- cheek (external) L02.01 — Cutaneous abscess of face
- inner K12.2 — Cellulitis and abscess of mouth
- chest J86.9 — Pyothorax without fistula
- with fistula J86.0 — Pyothorax with fistula
- wall L02.213 — Cutaneous abscess of chest wall
- chin L02.01 — Cutaneous abscess of face
- choroid
- circumtonsillar J36 — Peritonsillar abscess
- cold (lung) (tuberculous)
- articular
- colon (wall) K63.0 — Abscess of intestine
- colostomy K94.02 — Colostomy infection
- conjunctiva
- cornea H16.31 — Corneal abscess
- corpus
- cavernosum N48.21 — Abscess of corpus cavernosum and penis
- luteum
- Cowper's gland N34.0 — Urethral abscess
- cranium G06.0 — Intracranial abscess and granuloma
- cul-de-sac (Douglas') (posterior)
- cutaneous
- dental K04.7 — Periapical abscess without sinus
- with sinus (alveolar) K04.6 — Periapical abscess with sinus
- dentoalveolar K04.7 — Periapical abscess without sinus
- with sinus K04.6 — Periapical abscess with sinus
- diaphragm, diaphragmatic K65.1 — Peritoneal abscess
- Douglas' cul-de-sac or pouch
- Dubois A50.59 — Other late congenital syphilis, symptomatic
- ear (middle)
- acute
- external H60.0 — Abscess of external ear
- entamebic
- enterostomy K94.12 — Enterostomy infection
- epididymis N45.4 — Abscess of epididymis or testis
- epidural G06.2 — Extradural and subdural abscess, unspecified
- brain G06.0 — Intracranial abscess and granuloma
- spinal cord G06.1 — Intraspinal abscess and granuloma
- epiglottis J38.7 — Other diseases of larynx
- epiploon, epiploic K65.1 — Peritoneal abscess
- erysipelatous
- esophagus K20.80 — Other esophagitis without bleeding
- ethmoid (bone) (chronic) (sinus) J32.2 — Chronic ethmoidal sinusitis
- external auditory canal
- extradural G06.2 — Extradural and subdural abscess, unspecified
- brain G06.0 — Intracranial abscess and granuloma
- sequelae G09 — Sequelae of inflammatory diseases of central nervous system
- spinal cord G06.1 — Intraspinal abscess and granuloma
- extraperitoneal K68.19 — Other retroperitoneal abscess
- meaning pelvic
- eye
- eyelid H00.03 — Abscess of eyelid
- face (any part, except ear, eye and nose) L02.01 — Cutaneous abscess of face
- fallopian tube
- fascia M72.8 — Other fibroblastic disorders
- fauces J39.1 — Other abscess of pharynx
- fecal K63.0 — Abscess of intestine
- femoral (region)
- filaria, filarial
- finger (any)
- nail
- flank L02.217 — Cutaneous abscess of flank
- foot L02.61 — Cutaneous abscess of foot
- forehead L02.01 — Cutaneous abscess of face
- frontal sinus (chronic) J32.1 — Chronic frontal sinusitis
- gallbladder K81.0 — Acute cholecystitis
- genital organ or tract
- female (external) N76.4 — Abscess of vulva
- male N49.9 — Inflammatory disorder of unspecified male genital organ
- multiple sites N49.8 — Inflammatory disorders of other specified male genital organs
- specified NEC N49.8 — Inflammatory disorders of other specified male genital organs
- gestational mammary O91.11 — Abscess of breast associated with pregnancy
- gestational subareolar O91.11 — Abscess of breast associated with pregnancy
- gingival
- aggressive K05.20 — Aggressive periodontitis, unspecified
- generalized K05.229 — Aggressive periodontitis, generalized, unspecified severity
- moderate K05.222 — Aggressive periodontitis, generalized, moderate
- severe K05.223 — Aggressive periodontitis, generalized, severe
- slight K05.221 — Aggressive periodontitis, generalized, slight
- localized K05.219 — Aggressive periodontitis, localized, unspecified severity
- moderate K05.212 — Aggressive periodontitis, localized, moderate
- severe K05.213 — Aggressive periodontitis, localized, severe
- slight K05.211 — Aggressive periodontitis, localized, slight
- gland, glandular (lymph) (acute)
- gluteal (region) L02.31 — Cutaneous abscess of buttock
- gonorrheal
- groin L02.214 — Cutaneous abscess of groin
- gum
- aggressive K05.20 — Aggressive periodontitis, unspecified
- generalized K05.229 — Aggressive periodontitis, generalized, unspecified severity
- moderate K05.222 — Aggressive periodontitis, generalized, moderate
- severe K05.223 — Aggressive periodontitis, generalized, severe
- slight K05.221 — Aggressive periodontitis, generalized, slight
- localized K05.219 — Aggressive periodontitis, localized, unspecified severity
- moderate K05.212 — Aggressive periodontitis, localized, moderate
- severe K05.213 — Aggressive periodontitis, localized, severe
- slight K05.211 — Aggressive periodontitis, localized, slight
- hand L02.51 — Cutaneous abscess of hand
- head NEC L02.811 — Cutaneous abscess of head [any part, except face]
- face (any part, except ear, eye and nose) L02.01 — Cutaneous abscess of face
- heart
- heel
- helminthic
- hepatic (cholangitic) (hematogenic) (lymphogenic) (pylephlebitic) K75.0 — Abscess of liver
- amebic A06.4 — Amebic liver abscess
- hip (region)
- horseshoe K61.31 — Horseshoe abscess
- ileocecal K35.33 — Acute appendicitis with perforation, localized peritonitis, and gangrene, with abscess
- ileostomy (bud) K94.12 — Enterostomy infection
- iliac (region) L02.214 — Cutaneous abscess of groin
- fossa K35.33 — Acute appendicitis with perforation, localized peritonitis, and gangrene, with abscess
- infraclavicular (fossa)
- inguinal (region) L02.214 — Cutaneous abscess of groin
- lymph gland or node L04.1 — Acute lymphadenitis of trunk
- intersphincteric K61.4 — Intrasphincteric abscess
- intestine, intestinal NEC K63.0 — Abscess of intestine
- rectal K61.1 — Rectal abscess
- intra-abdominal K65.1 — Peritoneal abscess
- following procedure T81.43 — Infection following a procedure, organ and space surgical site
- obstetrical O86.03 — Infection of obstetric surgical wound, organ and space site
- postprocedural T81.43 — Infection following a procedure, organ and space surgical site
- retroperitoneal K68.11 — Postprocedural retroperitoneal abscess
- intracranial G06.0 — Intracranial abscess and granuloma
- intramammary
- intramuscular, following procedure T81.42 — Infection following a procedure, deep incisional surgical site
- obstetrical O86.02 — Infection of obstetric surgical wound, deep incisional site
- intraorbital
- intraperitoneal K65.1 — Peritoneal abscess
- intrasphincteric (anus) K61.4 — Intrasphincteric abscess
- intraspinal G06.1 — Intraspinal abscess and granuloma
- intratonsillar J36 — Peritonsillar abscess
- ischiorectal (fossa) (specified NEC) K61.39 — Other ischiorectal abscess
- jaw (bone) (lower) (upper) M27.2 — Inflammatory conditions of jaws
- joint
- spine (tuberculous) A18.01 — Tuberculosis of spine
- nontuberculous
- kidney N15.1 — Renal and perinephric abscess
- with calculus N20.0 — Calculus of kidney
- with hydronephrosis N13.6 — Pyonephrosis
- puerperal (postpartum) O86.21 — Infection of kidney following delivery
- knee
- joint M00.9 — Pyogenic arthritis, unspecified
- labium (majus) (minus) N76.4 — Abscess of vulva
- lacrimal
- caruncle
- gland
- passages (duct) (sac)
- lacunar N34.0 — Urethral abscess
- larynx J38.7 — Other diseases of larynx
- lateral (alveolar) K04.7 — Periapical abscess without sinus
- with sinus K04.6 — Periapical abscess with sinus
- leg (any part)
- lens H27.8 — Other specified disorders of lens
- lingual K14.0 — Glossitis
- tonsil J36 — Peritonsillar abscess
- lip K13.0 — Diseases of lips
- Littre's gland N34.0 — Urethral abscess
- liver (cholangitic) (hematogenic) (lymphogenic) (pylephlebitic) (pyogenic) K75.0 — Abscess of liver
- amebic (due to Entamoeba histolytica) (dysenteric) (tropical) A06.4 — Amebic liver abscess
- with
- brain abscess (and liver or lung abscess) A06.6 — Amebic brain abscess
- lung abscess A06.5 — Amebic lung abscess
- loin (region) L02.211 — Cutaneous abscess of abdominal wall
- lower limb L02.41 — Cutaneous abscess of limb
- lumbar (tuberculous) A18.01 — Tuberculosis of spine
- nontuberculous L02.212 — Cutaneous abscess of back [any part, except buttock and flank]
- lung (miliary) (putrid) J85.2 — Abscess of lung without pneumonia
- with pneumonia J85.1 — Abscess of lung with pneumonia
- due to specified organism (see Pneumonia, in (due to))
- amebic (with liver abscess) A06.5 — Amebic lung abscess
- with
- brain abscess A06.6 — Amebic brain abscess
- pneumonia A06.5 — Amebic lung abscess
- lymph, lymphatic, gland or node (acute)
- mesentery I88.0 — Nonspecific mesenteric lymphadenitis
- malar M27.2 — Inflammatory conditions of jaws
- mammary gland
- marginal, anus K61.0 — Anal abscess
- mastoid
- maxilla, maxillary M27.2 — Inflammatory conditions of jaws
- molar (tooth) K04.7 — Periapical abscess without sinus
- with sinus K04.6 — Periapical abscess with sinus
- premolar K04.7 — Periapical abscess without sinus
- sinus (chronic) J32.0 — Chronic maxillary sinusitis
- mediastinum J85.3 — Abscess of mediastinum
- meibomian gland
- meninges G06.2 — Extradural and subdural abscess, unspecified
- mesentery, mesenteric K65.1 — Peritoneal abscess
- mesosalpinx
- mons pubis L02.215 — Cutaneous abscess of perineum
- mouth (floor) K12.2 — Cellulitis and abscess of mouth
- muscle
- myocardium I40.0 — Infective myocarditis
- nabothian (follicle)
- nasal J32.9 — Chronic sinusitis, unspecified
- nasopharyngeal J39.1 — Other abscess of pharynx
- navel L02.216 — Cutaneous abscess of umbilicus
- newborn P38.9 — Omphalitis without hemorrhage
- with mild hemorrhage P38.1 — Omphalitis with mild hemorrhage
Common questions about abscess ICD-10 codes
What is the ICD-10 code for abscess?
- L02.91 — Cutaneous abscess, unspecified. More specific codes apply when the documentation supports them: K57.80, K57.81, K57.20, K57.21 and others below.
What is the ICD-10 code for abdominopelvic abscess?
- K65.1 — Peritoneal abscess.
What is the ICD-10 code for adrenal abscess?
- E27.8 — Other specified disorders of adrenal gland.
What is the ICD-10 code for alveolar abscess?
- K04.7 — Periapical abscess without sinus.
What is the ICD-10 code for amebic abscess?
- A06.4 — Amebic liver abscess.
What is the ICD-10 code for anerobic abscess?
- A48.0 — Gas gangrene.
What is the ICD-10 code for anorectal abscess?
- K61.2 — Anorectal abscess.
Is L02.91 billable?
- Yes. L02.91 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can L02.91 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict L02.91 as a principal diagnosis.
Is L02.91 a CC or MCC?
- L02.91 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.