ICD-10-CM Excludes2 Notes · Chapter 11 · FY 2027 K00-K95

Excludes2 Notes in Chapter 11: Diseases of the digestive system ICD-10-CM

An Excludes2 note means "NOT INCLUDED HERE": the excluded condition is not part of this code, but a patient may have both, so both codes may be reported. In Chapter 11 (K00-K95), notes printed in the chapter name other codes 174 times, and Excludes2 Notes anywhere in the Tabular List name the chapter’s codes 151 times, covering 105 distinct codes, categories and ranges. Switch views to read the list either way.

✓ From the official FY 2027 ICD-10-CM Tabular ListDefinitions follow the Official Guidelines, Section I.A
174
References in Its Notes
151
References to Its Codes
105
Chapter Codes Named
K00-K95
Chapter 11
Chapter 11

Excludes2 Notes by the code that carries the note

77 of 77 shown
  • Chapter note Chapter 11 (K00-K95) Diseases of the digestive system applies to 863 codes
    • certain conditions originating in the perinatal period (P04-P96)
    • certain infectious and parasitic diseases (A00-B99)
    • complications of pregnancy, childbirth and the puerperium (O00-O9A)
    • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
    • endocrine, nutritional and metabolic diseases (E00-E88)
    • injury, poisoning and certain other consequences of external causes (S00-T88)
    • neoplasms (C00-D49)
    • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
  • K00 Disorders of tooth development and eruption applies to 10 codes
    • embedded and impacted teeth (K01.-)
  • K00.1 Supernumerary teeth
    • supernumerary roots (K00.2)
  • K00.3 Mottled teeth
    • deposits [accretions] on teeth (K03.6)
  • K00.4 Disturbances in tooth formation
  • K00.6 Disturbances in tooth eruption
    • embedded and impacted teeth (K01.-)
  • K00.8 Other disorders of tooth development
    • posteruptive color changes (K03.7)
  • K03 Other diseases of hard tissues of teeth applies to 11 codes
  • K03.7 Posteruptive color changes of dental hard tissues
    • deposits [accretions] on teeth (K03.6)
  • K04.8 Radicular cyst
    • lateral periodontal cyst (K09.0)
  • K05.5 Other periodontal diseases
    • leukoplakia of gingiva (K13.21)
  • K06 Other disorders of gingiva and edentulous alveolar ridge applies to 13 codes
    • acute gingivitis (K05.0)
    • atrophy of edentulous alveolar ridge (K08.2)
    • chronic gingivitis (K05.1)
    • gingivitis NOS (K05.1)
  • K06.8 Other specified disorders of gingiva and edentulous alveolar ridge
  • K08 Other disorders of teeth and supporting structures applies to 73 codes
    • dentofacial anomalies [including malocclusion] (M26.-)
    • disorders of jaw (M27.-)
  • K08.4 Partial loss of teeth applies to 25 codes
    • exfoliation of teeth due to systemic causes (K08.0)
  • K08.5 Unsatisfactory restoration of tooth applies to 10 codes
    • endosseous dental implant failure (M27.6-)
    • unsatisfactory endodontic treatment (M27.5-)
  • K09 Cysts of oral region, not elsewhere classified applies to 4 codes
  • K09.0 Developmental odontogenic cysts
  • K11.7 Disturbances of salivary secretion
  • K12.2 Cellulitis and abscess of mouth
    • abscess of salivary gland (K11.3)
    • abscess of tongue (K14.0)
    • periapical abscess (K04.6-K04.7)
    • periodontal abscess (K05.21)
    • peritonsillar abscess (J36)
  • K12.3 Oral mucositis (ulcerative) applies to 5 codes
    • gastrointestinal mucositis (ulcerative) (K92.81)
    • mucositis (ulcerative) of vagina and vulva (N76.81)
    • nasal mucositis (ulcerative) (J34.81)
  • K13 Other diseases of lip and oral mucosa applies to 13 codes
    • certain disorders of gingiva and edentulous alveolar ridge (K05-K06)
    • cysts of oral region (K09.-)
    • diseases of tongue (K14.-)
    • stomatitis and related lesions (K12.-)
  • K13.6 Irritative hyperplasia of oral mucosa
    • irritative hyperplasia of edentulous ridge [denture hyperplasia] (K06.2)
  • K14 Diseases of tongue applies to 9 codes
    • erythroplakia (K13.29)
    • focal epithelial hyperplasia (K13.29)
    • leukoedema of tongue (K13.29)
    • leukoplakia of tongue (K13.21)
    • hairy leukoplakia (K13.3)
    • macroglossia (congenital) (Q38.2)
    • submucous fibrosis of tongue (K13.5)
  • Block note Block K20-K31 Diseases of esophagus, stomach and duodenum applies to 106 codes
  • K20 Esophagitis applies to 5 codes
    • eosinophilic gastritis or gastroenteritis (K52.81)
  • K22 Other diseases of esophagus applies to 16 codes
    • esophageal varices (I85.-)
  • K22.11 Ulcer of esophagus with bleeding
  • K22.8 Other specified diseases of esophagus applies to 3 codes
    • esophageal varices (I85.-)
    • Paterson-Kelly syndrome (D50.1)
  • K31 Other diseases of stomach and duodenum applies to 26 codes
  • K31.82 Dieulafoy lesion (hemorrhagic) of stomach and duodenum
    • Dieulafoy lesion of intestine (K63.81)
  • K51.4 Inflammatory polyps of colon applies to 7 codes
    • adenomatous polyp of colon (D12.6)
    • polyposis of colon (D12.6)
    • polyps of colon NOS (K63.5)
  • K52.2 Allergic and dietetic gastroenteritis and colitis applies to 3 codes
    • allergic eosinophilic colitis (K52.82)
    • allergic eosinophilic esophagitis (K20.0)
    • allergic eosinophilic gastritis (K52.81)
    • allergic eosinophilic gastroenteritis (K52.81)
  • K52.81 Eosinophilic gastritis or gastroenteritis
    • eosinophilic esophagitis (K20.0)
  • K52.82 Eosinophilic colitis
    • allergic proctocolitis (K52.29)
    • food-induced eosinophilic proctocolitis (K52.29)
    • food protein-induced enterocolitis syndrome (FPIES) (K52.21)
    • food protein-induced proctocolitis (K52.29)
    • milk protein-induced proctocolitis (K52.29)
  • K55 Vascular disorders of intestine applies to 27 codes
    • angioectasia (angiodysplasia) duodenum (K31.81-)
  • K55.3 Necrotizing enterocolitis applies to 4 codes
    • necrotizing enterocolitis due to Clostridium difficile (A04.7-)
  • K56 Paralytic ileus and intestinal obstruction without hernia applies to 16 codes
    • stenosis of anus or rectum (K62.4)
  • K56.1 Intussusception
    • intussusception of appendix (K38.8)
  • K56.2 Volvulus
    • volvulus of duodenum (K31.5)
  • K56.41 Fecal impaction
    • incomplete defecation (R15.0)
  • K56.7 Ileus, unspecified
    • intestinal obstruction with hernia (K40-K46)
  • K57 Diverticular disease of intestine applies to 24 codes
    • diverticulum of appendix (K38.2)
  • K59 Other functional intestinal disorders applies to 14 codes
    • functional disorders of stomach (K31.-)
  • K59.0 Constipation applies to 6 codes
    • incomplete defecation (R15.0)
  • K60 Fissure and fistula of anal and rectal regions applies to 30 codes
    • abscess or cellulitis of anal and rectal regions (K61.-)
    • anal sphincter tear (healed) (nontraumatic) (old) (K62.81)
  • K61.0 Anal abscess
    • intrasphincteric abscess (K61.4)
  • K62 Other diseases of anus and rectum applies to 12 codes
  • K62.8 Other specified diseases of anus and rectum applies to 3 codes
    • ulcerative proctitis (K51.2)
  • K62.81 Anal sphincter tear (healed) (nontraumatic) (old)
    • anal fissure (K60.-)
    • anal sphincter tear (healed) (old) complicating delivery (O34.7-)
    • traumatic tear of anal sphincter (S31.831)
  • K63.0 Abscess of intestine
    • abscess of anal and rectal regions (K61.-)
    • abscess of appendix (K35.3-)
  • K63.1 Perforation of intestine (nontraumatic)
  • K63.2 Fistula of intestine
    • fistula of anal and rectal regions (K60.-)
    • fistula of appendix (K38.3)
    • intestinal-genital fistula, female (N82.2-N82.4)
    • vesicointestinal fistula (N32.1)
  • K63.5 Polyp of colon
    • adenomatous polyp of colon (D12.-)
    • inflammatory polyp of colon (K51.4-)
    • polyposis of colon (D12.6)
  • K63.81 Dieulafoy lesion of intestine
    • Dieulafoy lesion of stomach and duodenum (K31.82)
  • K65.1 Peritoneal abscess
    • pelvic abscess (extraperitoneal) (K6A.0-)
  • K66 Other disorders of peritoneum applies to 4 codes
    • ascites (R18.-)
    • peritoneal effusion (chronic) (R18.8)
  • K66.0 Peritoneal adhesions (postprocedural) (postinfection)
    • female pelvic adhesions [bands] (N73.6)
    • female pelvic postprocedural adhesions (N99.4)
  • K66.1 Hemoperitoneum
    • retroperitoneal hematoma (K68.3)
    • retroperitoneal hemorrhage (K68.3)
  • K68.11 Postprocedural retroperitoneal abscess
    • infection following procedure (T81.4-)
  • K6A.0 Pelvic abscess applies to 2 codes
    • peritoneal abscess (K65.1)
    • retroperitoneal abscess (K68.1-)
  • Block note Block K70-K77 Diseases of liver applies to 65 codes
  • K71 Toxic liver disease applies to 12 codes
    • alcoholic liver disease (K70.-)
    • Budd-Chiari syndrome (I82.0)
  • K72 Hepatic failure, not elsewhere classified applies to 6 codes
    • hepatic failure complicating abortion or ectopic or molar pregnancy (O00-O07, O08.8)
    • hepatic failure complicating pregnancy, childbirth and the puerperium (O26.6-)
    • viral hepatitis with hepatic coma (B15-B19)
  • K74.3 Primary biliary cirrhosis
    • primary sclerosing cholangitis (K83.01)
  • K75 Other inflammatory liver diseases applies to 8 codes
    • toxic liver disease (K71.-)
  • K75.0 Abscess of liver
    • acute or subacute hepatitis NOS (B17.9)
    • acute or subacute non-viral hepatitis (K72.0)
    • chronic hepatitis NEC (K73.8)
  • K76 Other diseases of liver applies to 13 codes
    • alcoholic liver disease (K70.-)
    • amyloid degeneration of liver (E85.-)
    • cystic disease of liver (congenital) (Q44.6)
    • hepatic vein thrombosis (I82.0)
    • hepatomegaly NOS (R16.0)
    • pigmentary cirrhosis (of liver) (E83.110)
    • portal vein thrombosis (I81)
    • toxic liver disease (K71.-)
  • K83 Other diseases of biliary tract applies to 9 codes
    • conditions involving the gallbladder (K81-K82)
    • conditions involving the cystic duct (K81-K82)
  • K83.0 Cholangitis applies to 2 codes
    • chronic nonsuppurative destructive cholangitis (K74.3)
    • primary biliary cholangitis (K74.3)
    • primary biliary cirrhosis (K74.3)
  • K85.2 Alcohol induced acute pancreatitis applies to 3 codes
    • alcohol induced chronic pancreatitis (K86.0)
  • K86 Other diseases of pancreas applies to 7 codes
    • fibrocystic disease of pancreas (E84.-)
    • islet cell tumor (of pancreas) (D13.7)
    • pancreatic steatorrhea (K90.3)
  • K86.0 Alcohol-induced chronic pancreatitis
    • alcohol induced acute pancreatitis (K85.2-)
  • K90.4 Other malabsorption due to intolerance applies to 2 codes
    • celiac gluten-sensitive enteropathy (K90.0)
    • lactose intolerance (E73.-)
  • K91 Intraoperative and postprocedural complications and disorders of digestive system, not elsewhere classified applies to 24 codes
    • complications of artificial opening of digestive system (K94.-)
    • complications of bariatric procedures (K95.-)
    • gastrojejunal ulcer (K28.-)
    • postprocedural (radiation) retroperitoneal abscess (K68.11)
    • radiation colitis (K52.0)
    • radiation gastroenteritis (K52.0)
    • radiation proctitis (K62.7)
  • K91.89 Other postprocedural complications and disorders of digestive system
    • postprocedural retroperitoneal abscess (K68.11)
  • K92.81 Gastrointestinal mucositis (ulcerative)
    • mucositis (ulcerative) of vagina and vulva (N76.81)
    • nasal mucositis (ulcerative) (J34.81)
    • oral mucositis (ulcerative) (K12.3-)

The first view lists notes printed in this chapter (a note on a category or block applies to every code beneath it). The second lists codes of this chapter named by Excludes2 Notes anywhere in the Tabular List, including notes in other chapters.

Questions About Excludes2 Notes

What does an Excludes2 note mean?

An Excludes2 note means “Not included here”: the excluded condition is not part of the condition represented by the code, but a patient may have both conditions at the same time (Section I.A.12.b). The FY 2027 Tabular List has 2,529 of them; 2,493 name other codes, with 2,799 references to 1,779 distinct codes, categories and ranges.

Can both codes be reported when there is an Excludes2 note?

Yes. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate: that is, when the patient has both conditions and both are documented.

Related References

ICD-10-CM Official GuidelinesICD-10-CM Code LookupICD-10-CM Codes ListCode Lists by Tag

Source: FY 2027 ICD-10-CM Tabular List (CMS and NCHS) and the ICD-10-CM Official Guidelines for Coding and Reporting FY 2027, Section I.A. ICD List is not affiliated with CMS or NCHS.