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Dx

ICD-10-CM 2027

ICD-10 code for fistula

L98.8

Other specified disorders of the skin and subcutaneous tissue

✓ Billable / specific

From the official ICD-10-CM alphabetic index entry “Fistula (cutaneous)”. Page updated September 29, 2026.

About coding fistula

The ICD-10-CM code for fistula is L98.8 (Other specified disorders of the skin and subcutaneous tissue). The official index lists 254+ more specific codes, so check the documentation for details such as type, cause, site or severity before settling on L98.8.

Within L98, choose L98.8 (Other specified disorders of the skin and subcutaneous tissue) only when documentation doesn't support a more specific option: pyogenic granuloma (L98.0), Factitial dermatitis (L98.1), febrile neutrophilic dermatosis [Sweet] (L98.2), eosinophilic cellulitis [Wells] (L98.3), Non-pressure chronic ulcer of skin, not elsewhere classified (L98.4), Mucinosis of the skin (L98.5), other infiltrative disorders of the skin and subcutaneous tissue (L98.6), excessive and redundant skin and subcutaneous tissue (L98.7) and 2 more.

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 606 (Minor Skin Disorders with MCC, relative weight 1.5728) and DRG 607 (Minor Skin Disorders without MCC, relative weight 0.8772), in MDC 09 (Diseases and Disorders of the Skin, Subcutaneous Tissue and Breast), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

More specific fistula codes (official index)

  • abdomen (wall) K63.2 — Fistula of intestine
  • bladder N32.2 — Vesical fistula, not elsewhere classified
  • intestine NEC K63.2 — Fistula of intestine
  • ureter N28.89 — Other specified disorders of kidney and ureter
  • uterus N82.5 — Female genital tract-skin fistulae
  • abdominorectal K63.2 — Fistula of intestine
  • abdominosigmoidal K63.2 — Fistula of intestine
  • abdominothoracic J86.0 — Pyothorax with fistula
  • abdominouterine N82.5 — Female genital tract-skin fistulae
  • congenital Q51.7 — Congenital fistulae between uterus and digestive and urinary tracts
  • abdominovesical N32.2 — Vesical fistula, not elsewhere classified
  • accessory sinuses
  • actinomycotic
  • alveolar antrum
  • alveolar process K04.6 — Periapical abscess with sinus
  • anorectal (infectional) K60.50 — Anorectal fistula, unspecified
  • complex K60.529 — Anorectal fistula, complex, unspecified
  • chronic K60.522 — Anorectal fistula, complex, persistent
  • initial K60.521 — Anorectal fistula, complex, initial
  • new K60.521 — Anorectal fistula, complex, initial
  • occurring following complete healing K60.523 — Anorectal fistula, complex, recurrent
  • persistent K60.522 — Anorectal fistula, complex, persistent
  • recurrent K60.523 — Anorectal fistula, complex, recurrent
  • extrasphincteric K60.52 — Anorectal fistula, complex
  • high intersphincteric K60.52 — Anorectal fistula, complex
  • low intersphincteric K60.51 — Anorectal fistula, simple
  • simple K60.519 — Anorectal fistula, simple, unspecified
  • chronic K60.512 — Anorectal fistula, simple, persistent
  • initial K60.511 — Anorectal fistula, simple, initial
  • new K60.511 — Anorectal fistula, simple, initial
  • occurring following complete healing K60.513 — Anorectal fistula, simple, recurrent
  • persistent K60.512 — Anorectal fistula, simple, persistent
  • recurrent K60.513 — Anorectal fistula, simple, recurrent
  • superficial K60.51 — Anorectal fistula, simple
  • suprasphincteric K60.52 — Anorectal fistula, complex
  • transsphincteric K60.52 — Anorectal fistula, complex
  • antrobuccal
  • antrum
  • anus, anal (recurrent) (infectional) K60.30 — Anal fistula, unspecified
  • complex K60.329 — Anal fistula, complex, unspecified
  • chronic K60.322 — Anal fistula, complex, persistent
  • initial K60.321 — Anal fistula, complex, initial
  • new K60.321 — Anal fistula, complex, initial
  • occurring following complete healing K60.323 — Anal fistula, complex, recurrent
  • persistent K60.322 — Anal fistula, complex, persistent
  • recurrent K60.323 — Anal fistula, complex, recurrent
  • congenital Q43.6 — Congenital fistula of rectum and anus
  • with absence, atresia and stenosis Q42.2 — Congenital absence, atresia and stenosis of anus with fistula
  • extrasphincteric K60.32 — Anal fistula, complex
  • high intersphincteric K60.32 — Anal fistula, complex
  • low intersphincteric K60.31 — Anal fistula, simple
  • simple K60.319 — Anal fistula, simple, unspecified
  • chronic K60.312 — Anal fistula, simple, persistent
  • initial K60.311 — Anal fistula, simple, initial
  • new K60.311 — Anal fistula, simple, initial
  • occurring following complete healing K60.313 — Anal fistula, simple, recurrent
  • persistent K60.312 — Anal fistula, simple, persistent
  • recurrent K60.313 — Anal fistula, simple, recurrent
  • superficial K60.31 — Anal fistula, simple
  • suprasphincteric K60.32 — Anal fistula, complex
  • transsphincteric K60.32 — Anal fistula, complex
  • tuberculous A18.32 — Tuberculous enteritis
  • aorta-duodenal I77.2 — Rupture of artery
  • appendix, appendicular K38.3 — Fistula of appendix
  • arteriovenous (acquired) (nonruptured) I77.0 — Arteriovenous fistula, acquired
  • brain I67.1 — Cerebral aneurysm, nonruptured
  • congenital Q28.2 — Arteriovenous malformation of cerebral vessels
  • ruptured
  • ruptured I60.8 — Other nontraumatic subarachnoid hemorrhage
  • intracerebral I61.8 — Other nontraumatic intracerebral hemorrhage
  • intraparenchymal I61.8 — Other nontraumatic intracerebral hemorrhage
  • intraventricular I61.5 — Nontraumatic intracerebral hemorrhage, intraventricular
  • subarachnoid I60.8 — Other nontraumatic subarachnoid hemorrhage
  • cerebral
  • congenital (peripheral)
  • brain Q28.2 — Arteriovenous malformation of cerebral vessels
  • ruptured
  • coronary Q24.5 — Malformation of coronary vessels
  • pulmonary Q25.72 — Congenital pulmonary arteriovenous malformation
  • coronary I25.41 — Coronary artery aneurysm
  • congenital Q24.5 — Malformation of coronary vessels
  • pulmonary I28.0 — Arteriovenous fistula of pulmonary vessels
  • congenital Q25.72 — Congenital pulmonary arteriovenous malformation
  • surgically created (for dialysis) Z99.2 — Dependence on renal dialysis
  • complication
  • traumatic
  • artery I77.2 — Rupture of artery
  • aural (mastoid)
  • auricle
  • congenital Q18.1 — Preauricular sinus and cyst
  • Bartholin's gland N82.8 — Other female genital tract fistulae
  • bile duct (common) (hepatic) K83.3 — Fistula of bile duct
  • with calculus, stones K83.3 — Fistula of bile duct
  • biliary (tract)
  • bladder (sphincter) NEC N32.2 — Vesical fistula, not elsewhere classified
  • into seminal vesicle N32.2 — Vesical fistula, not elsewhere classified
  • bone
  • with osteomyelitis, chronic
  • brain G93.89 — Other specified disorders of brain
  • arteriovenous (acquired) I67.1 — Cerebral aneurysm, nonruptured
  • congenital Q28.2 — Arteriovenous malformation of cerebral vessels
  • branchial (cleft) Q18.0 — Sinus, fistula and cyst of branchial cleft
  • branchiogenous Q18.0 — Sinus, fistula and cyst of branchial cleft
  • breast N61.0 — Mastitis without abscess
  • puerperal, postpartum or gestational, due to mastitis (purulent)
  • bronchial J86.0 — Pyothorax with fistula
  • bronchocutaneous, bronchomediastinal, bronchopleural, bronchopleuromediastinal (infective) J86.0 — Pyothorax with fistula
  • tuberculous NEC A15.5 — Tuberculosis of larynx, trachea and bronchus
  • bronchoesophageal J86.0 — Pyothorax with fistula
  • congenital Q39.2 — Congenital tracheo-esophageal fistula without atresia
  • with atresia of esophagus Q39.1 — Atresia of esophagus with tracheo-esophageal fistula
  • bronchovisceral J86.0 — Pyothorax with fistula
  • buccal cavity (infective) K12.2 — Cellulitis and abscess of mouth
  • cecosigmoidal K63.2 — Fistula of intestine
  • cecum K63.2 — Fistula of intestine
  • cerebrospinal (fluid) G96.08 — Other cranial cerebrospinal fluid leak
  • cervical, lateral Q18.1 — Preauricular sinus and cyst
  • cervicoaural Q18.1 — Preauricular sinus and cyst
  • cervicosigmoidal N82.4 — Other female intestinal-genital tract fistulae
  • cervicovesical N82.1 — Other female urinary-genital tract fistulae
  • cervix N82.8 — Other female genital tract fistulae
  • chest (wall) J86.0 — Pyothorax with fistula
  • cholecystenteric
  • cholecystocolic
  • cholecystocolonic
  • cholecystoduodenal
  • cholecystogastric
  • cholecystointestinal
  • choledochoduodenal
  • cholocolic K82.3 — Fistula of gallbladder
  • coccyx
  • colon K63.2 — Fistula of intestine
  • colostomy K94.09 — Other complications of colostomy
  • colovesical N32.1 — Vesicointestinal fistula
  • common duct
  • congenital, site not listed
  • coronary, arteriovenous I25.41 — Coronary artery aneurysm
  • congenital Q24.5 — Malformation of coronary vessels
  • costal region J86.0 — Pyothorax with fistula
  • cul-de-sac, Douglas' N82.8 — Other female genital tract fistulae
  • cystic duct
  • congenital Q44.5 — Other congenital malformations of bile ducts
  • dental K04.6 — Periapical abscess with sinus
  • diaphragm J86.0 — Pyothorax with fistula
  • duodenum K31.6 — Fistula of stomach and duodenum
  • ear (external) (canal)
  • enterocolic K63.2 — Fistula of intestine
  • enterocutaneous K63.2 — Fistula of intestine
  • enterouterine N82.4 — Other female intestinal-genital tract fistulae
  • congenital Q51.7 — Congenital fistulae between uterus and digestive and urinary tracts
  • enterovaginal N82.4 — Other female intestinal-genital tract fistulae
  • congenital Q52.2 — Congenital rectovaginal fistula
  • large intestine N82.3 — Fistula of vagina to large intestine
  • small intestine N82.2 — Fistula of vagina to small intestine
  • enterovesical N32.1 — Vesicointestinal fistula
  • epididymis N50.89 — Other specified disorders of the male genital organs
  • tuberculous A18.15 — Tuberculosis of other male genital organs
  • esophagobronchial J86.0 — Pyothorax with fistula
  • congenital Q39.2 — Congenital tracheo-esophageal fistula without atresia
  • with atresia of esophagus Q39.1 — Atresia of esophagus with tracheo-esophageal fistula
  • esophagocutaneous K22.89 — Other specified disease of esophagus
  • esophagopleural-cutaneous J86.0 — Pyothorax with fistula
  • esophagotracheal J86.0 — Pyothorax with fistula
  • congenital Q39.2 — Congenital tracheo-esophageal fistula without atresia
  • with atresia of esophagus Q39.1 — Atresia of esophagus with tracheo-esophageal fistula
  • esophagus K22.89 — Other specified disease of esophagus
  • congenital Q39.2 — Congenital tracheo-esophageal fistula without atresia
  • with atresia of esophagus Q39.1 — Atresia of esophagus with tracheo-esophageal fistula
  • ethmoid
  • eyeball (cornea) (sclera)
  • eyelid H01.8 — Other specified inflammations of eyelid
  • fallopian tube, external N82.5 — Female genital tract-skin fistulae
  • fecal K63.2 — Fistula of intestine
  • congenital Q43.6 — Congenital fistula of rectum and anus
  • from periapical abscess K04.6 — Periapical abscess with sinus
  • frontal sinus
  • gallbladder K82.3 — Fistula of gallbladder
  • with calculus, cholelithiasis, stones
  • gastric K31.6 — Fistula of stomach and duodenum
  • gastrocolic K31.6 — Fistula of stomach and duodenum
  • congenital Q40.2 — Other specified congenital malformations of stomach
  • tuberculous A18.32 — Tuberculous enteritis
  • gastroenterocolic K31.6 — Fistula of stomach and duodenum
  • gastroesophageal K31.6 — Fistula of stomach and duodenum
  • gastrojejunal K31.6 — Fistula of stomach and duodenum
  • gastrojejunocolic K31.6 — Fistula of stomach and duodenum
  • genital tract (female) N82.9 — Female genital tract fistula, unspecified
  • specified NEC N82.8 — Other female genital tract fistulae
  • to intestine NEC N82.4 — Other female intestinal-genital tract fistulae
  • to skin N82.5 — Female genital tract-skin fistulae
  • hepatic artery-portal vein, congenital Q26.6 — Portal vein-hepatic artery fistula
  • hepatopleural J86.0 — Pyothorax with fistula
  • hepatopulmonary J86.0 — Pyothorax with fistula
  • ileorectal or ileosigmoidal K63.2 — Fistula of intestine
  • ileovaginal N82.2 — Fistula of vagina to small intestine
  • ileovesical N32.1 — Vesicointestinal fistula
  • ileum K63.2 — Fistula of intestine
  • in ano K60.30 — Anal fistula, unspecified
  • tuberculous A18.32 — Tuberculous enteritis
  • inner ear (labyrinth)
  • intestine NEC K63.2 — Fistula of intestine
  • intestinocolonic (abdominal) K63.2 — Fistula of intestine
  • intestinoureteral N28.89 — Other specified disorders of kidney and ureter
  • intestinouterine N82.4 — Other female intestinal-genital tract fistulae
  • intestinovaginal N82.4 — Other female intestinal-genital tract fistulae
  • large intestine N82.3 — Fistula of vagina to large intestine
  • small intestine N82.2 — Fistula of vagina to small intestine
  • intestinovesical N32.1 — Vesicointestinal fistula
  • ischiorectal (fossa) K61.39 — Other ischiorectal abscess
  • jejunum K63.2 — Fistula of intestine
  • joint M25.10 — Fistula, unspecified joint
  • ankle M25.17 — Fistula, ankle and foot
  • elbow M25.12 — Fistula, elbow
  • foot joint M25.17 — Fistula, ankle and foot
  • hand joint M25.14 — Fistula, hand
  • hip M25.15 — Fistula, hip
  • knee M25.16 — Fistula, knee
  • shoulder M25.11 — Fistula, shoulder
  • specified joint NEC M25.18 — Fistula, other specified site
  • tuberculous
  • vertebrae M25.18 — Fistula, other specified site
  • wrist M25.13 — Fistula, wrist
  • kidney N28.89 — Other specified disorders of kidney and ureter
  • labium (majus) (minus) N82.8 — Other female genital tract fistulae
  • labyrinth
  • lacrimal (gland) (sac) H04.61 — Lacrimal fistula
  • lacrimonasal duct
  • laryngotracheal, congenital Q34.8 — Other specified congenital malformations of respiratory system
  • larynx J38.7 — Other diseases of larynx
  • lip K13.0 — Diseases of lips
  • congenital Q38.0 — Congenital malformations of lips, not elsewhere classified
  • lumbar, tuberculous A18.01 — Tuberculosis of spine
  • lung J86.0 — Pyothorax with fistula
  • lymphatic I89.8 — Other specified noninfective disorders of lymphatic vessels and lymph nodes
  • mammary (gland) N61.0 — Mastitis without abscess
  • mastoid (process) (region)
  • maxillary J32.0 — Chronic maxillary sinusitis
  • medial, face and neck Q18.8 — Other specified congenital malformations of face and neck
  • mediastinal J86.0 — Pyothorax with fistula
  • mediastinobronchial J86.0 — Pyothorax with fistula
  • mediastinocutaneous J86.0 — Pyothorax with fistula
  • middle ear
  • mouth K12.2 — Cellulitis and abscess of mouth
  • nasal J34.89 — Other specified disorders of nose and nasal sinuses
  • sinus
  • nasopharynx J39.2 — Other diseases of pharynx
  • nipple N64.0 — Fissure and fistula of nipple
  • nose J34.89 — Other specified disorders of nose and nasal sinuses
  • oral (cutaneous) K12.2 — Cellulitis and abscess of mouth
  • maxillary J32.0 — Chronic maxillary sinusitis
  • nasal (with cleft palate)
  • orbit, orbital
  • oroantral J32.0 — Chronic maxillary sinusitis
  • oviduct, external N82.5 — Female genital tract-skin fistulae
  • palate (hard) M27.8 — Other specified diseases of jaws
  • pancreatic K86.89 — Other specified diseases of pancreas
  • pancreaticoduodenal K86.89 — Other specified diseases of pancreas
  • parotid (gland) K11.4 — Fistula of salivary gland
  • region K12.2 — Cellulitis and abscess of mouth
  • penis N48.89 — Other specified disorders of penis
  • perianal K60.30 — Anal fistula, unspecified
  • pericardium (pleura) (sac)
  • pericecal K63.2 — Fistula of intestine
  • perineorectal K60.40 — Rectal fistula, unspecified
  • perineosigmoidal K63.2 — Fistula of intestine
  • perineum, perineal (with urethral involvement) NEC N36.0 — Urethral fistula
  • tuberculous A18.13 — Tuberculosis of other urinary organs
  • ureter N28.89 — Other specified disorders of kidney and ureter
  • perirectal K60.40 — Rectal fistula, unspecified
  • tuberculous A18.32 — Tuberculous enteritis
  • peritoneum K65.9 — Peritonitis, unspecified
  • pharyngoesophageal J39.2 — Other diseases of pharynx
  • pharynx J39.2 — Other diseases of pharynx
  • branchial cleft (congenital) Q18.0 — Sinus, fistula and cyst of branchial cleft
  • pilonidal (infected) (rectum)
  • pleura, pleural, pleurocutaneous, pleuroperitoneal J86.0 — Pyothorax with fistula
  • tuberculous NEC A15.6 — Tuberculous pleurisy
  • pleuropericardial I31.8 — Other specified diseases of pericardium
  • portal vein-hepatic artery, congenital Q26.6 — Portal vein-hepatic artery fistula
  • postauricular H70.81 — Postauricular fistula
  • postoperative, persistent T81.83 — Persistent postprocedural fistula
  • specified site
  • preauricular (congenital) Q18.1 — Preauricular sinus and cyst
  • prostate N42.89 — Other specified disorders of prostate
  • pulmonary J86.0 — Pyothorax with fistula
  • arteriovenous I28.0 — Arteriovenous fistula of pulmonary vessels
  • congenital Q25.72 — Congenital pulmonary arteriovenous malformation
  • tuberculous
  • pulmonoperitoneal J86.0 — Pyothorax with fistula
  • rectal (infectional) K60.40 — Rectal fistula, unspecified
  • complex K60.429 — Rectal fistula, complex, unspecified
  • chronic K60.422 — Rectal fistula, complex, persistent
  • initial K60.421 — Rectal fistula, complex, initial
  • new K60.421 — Rectal fistula, complex, initial
  • occurring following complete healing K60.423 — Rectal fistula, complex, recurrent
  • persistent K60.422 — Rectal fistula, complex, persistent
  • recurrent K60.423 — Rectal fistula, complex, recurrent
  • extrasphincteric K60.42 — Rectal fistula, complex
  • high intersphincteric K60.42 — Rectal fistula, complex
  • low intersphincteric K60.41 — Rectal fistula, simple

See all 424 entries in the alphabetic index

Common questions about fistula ICD-10 codes

What is the ICD-10 code for fistula?

L98.8 — Other specified disorders of the skin and subcutaneous tissue. More specific codes apply when the documentation supports them: K63.2, N32.2, K63.2, N28.89 and others below.

What is the ICD-10 code for abdomen fistula?

K63.2 — Fistula of intestine.

What is the ICD-10 code for abdominorectal fistula?

K63.2 — Fistula of intestine.

What is the ICD-10 code for abdominosigmoidal fistula?

K63.2 — Fistula of intestine.

What is the ICD-10 code for abdominothoracic fistula?

J86.0 — Pyothorax with fistula.

What is the ICD-10 code for abdominouterine fistula?

N82.5 — Female genital tract-skin fistulae.

What is the ICD-10 code for abdominovesical fistula?

N32.2 — Vesical fistula, not elsewhere classified.

Is L98.8 billable?

Yes. L98.8 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can L98.8 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict L98.8 as a principal diagnosis.

Is L98.8 a CC or MCC?

No. L98.8 is neither a CC nor an MCC under MS-DRG v44.0.