K ICD-10-CM Categories: Category Index
Browse 73 top-level ICD-10-CM categories beginning with K, then follow their complete FY 2027 child-code hierarchies.
Complete category list
Categories beginning with K
Open a category to continue through its complete hierarchy of more specific codes.
K00Disorders of tooth development and eruption
K01Embedded and impacted teeth
K02Dental caries
K03Other diseases of hard tissues of teeth
K04Diseases of pulp and periapical tissues
K05Gingivitis and periodontal diseases
K06Other disorders of gingiva and edentulous alveolar ridge
K08Other disorders of teeth and supporting structures
K09Cysts of oral region, not elsewhere classified
K11Diseases of salivary glands
K12Stomatitis and related lesions
K13Other diseases of lip and oral mucosa
K14Diseases of tongue
K20Esophagitis
K21Gastro-esophageal reflux disease
K22Other diseases of esophagus
K23Disorders of esophagus in diseases classified elsewhere
K25Gastric ulcer
K26Duodenal ulcer
K27Peptic ulcer, site unspecified
K28Gastrojejunal ulcer
K29Gastritis and duodenitis
K30Functional dyspepsia
K31Other diseases of stomach and duodenum
K35Acute appendicitis
K36Other appendicitis
K37Unspecified appendicitis
K38Other diseases of appendix
K40Inguinal hernia
K41Femoral hernia
K42Umbilical hernia
K43Ventral hernia
K44Diaphragmatic hernia
K45Other abdominal hernia
K46Unspecified abdominal hernia
K50Crohn's disease [regional enteritis]
K51Ulcerative colitis
K52Other and unspecified noninfective gastroenteritis and colitis
K55Vascular disorders of intestine
K56Paralytic ileus and intestinal obstruction without hernia
K57Diverticular disease of intestine
K58Irritable bowel syndrome
K59Other functional intestinal disorders
K60Fissure and fistula of anal and rectal regions
K61Abscess of anal and rectal regions
K62Other diseases of anus and rectum
K63Other diseases of intestine
K64Hemorrhoids and perianal venous thrombosis
K65Peritonitis
K66Other disorders of peritoneum
K67Disorders of peritoneum in infectious diseases classified elsewhere
K68Disorders of retroperitoneum
K6ADiseases of the pelvis, not elsewhere classified
K70Alcoholic liver disease
K71Toxic liver disease
K72Hepatic failure, not elsewhere classified
K73Chronic hepatitis, not elsewhere classified
K74Fibrosis and cirrhosis of liver
K75Other inflammatory liver diseases
K76Other diseases of liver
K77Liver disorders in diseases classified elsewhere
K80Cholelithiasis
K81Cholecystitis
K82Other diseases of gallbladder
K83Other diseases of biliary tract
K85Acute pancreatitis
K86Other diseases of pancreas
K87Disorders of gallbladder, biliary tract and pancreas in diseases classified elsewhere
K90Intestinal malabsorption
K91Intraoperative and postprocedural complications and disorders of digestive system, not elsewhere classified
K92Other diseases of digestive system
K94Complications of artificial openings of the digestive system
K95Complications of bariatric procedures
Transparency
Source and release
This category index is generated from Vero’s repository-backed ICD-10-CM hierarchy. Every listed category is a top-level record, and each linked category page exposes its direct child codes.
Review the CDC/NCHS ICD-10-CM sourceCategory navigation
Frequently asked questions
Which ICD-10-CM categories begin with K?
This index lists 73 top-level categories beginning with K from Vero’s FY 2027 U.S. ICD-10-CM reference dataset.
How do I find a more specific K code?
Open a category below, then follow its linked child-code hierarchy until you reach the code supported by the documentation.
Which ICD-10-CM release does this K index use?
The index uses the FY 2027 U.S. ICD-10-CM release and the repository-backed hierarchy displayed on each linked code page.
Is every K category billable?
No. These are top-level categories used for navigation. Follow the hierarchy to a sufficiently specific code and confirm the active code set, official guidance, and payer requirements.
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