About Section A00-A09

Section A00-A09 covers Intestinal infectious diseases within Chapter 1 of the ICD-10-CM Tabular List. This section includes diagnosis codes ranging from A00 to A09. Each code below includes its description, billable status, and links to detailed coding guidelines.
Diagnosis Codes 94 entries
A00CholeraNon-Billable›A00.0Cholera due to Vibrio cholerae 01, biovar choleraeBillable›A00.1Cholera due to Vibrio cholerae 01, biovar eltorBillable›A00.9Cholera, unspecifiedBillable›A01Typhoid and paratyphoid feversNon-Billable›A01.0Typhoid feverNon-Billable›A01.00Typhoid fever, unspecifiedBillable›A01.01Typhoid meningitisBillable›A01.02Typhoid fever with heart involvementBillable›A01.03Typhoid pneumoniaBillable›A01.04Typhoid arthritisBillable›A01.05Typhoid osteomyelitisBillable›A01.09Typhoid fever with other complicationsBillable›A01.1Paratyphoid fever ABillable›A01.2Paratyphoid fever BBillable›A01.3Paratyphoid fever CBillable›A01.4Paratyphoid fever, unspecifiedBillable›A02Other salmonella infectionsNon-Billable›A02.0Salmonella enteritisBillable›A02.1Salmonella sepsisBillable›A02.2Localized salmonella infectionsNon-Billable›A02.20Localized salmonella infection, unspecifiedBillable›A02.21Salmonella meningitisBillable›A02.22Salmonella pneumoniaBillable›A02.23Salmonella arthritisBillable›A02.24Salmonella osteomyelitisBillable›A02.25Salmonella pyelonephritisBillable›A02.29Salmonella with other localized infectionBillable›A02.8Other specified salmonella infectionsBillable›A02.9Salmonella infection, unspecifiedBillable›A03ShigellosisNon-Billable›A03.0Shigellosis due to Shigella dysenteriaeBillable›A03.1Shigellosis due to Shigella flexneriBillable›A03.2Shigellosis due to Shigella boydiiBillable›A03.3Shigellosis due to Shigella sonneiBillable›A03.8Other shigellosisBillable›A03.9Shigellosis, unspecifiedBillable›A04Other bacterial intestinal infectionsNon-Billable›A04.0Enteropathogenic Escherichia coli infectionBillable›A04.1Enterotoxigenic Escherichia coli infectionBillable›A04.2Enteroinvasive Escherichia coli infectionBillable›A04.3Enterohemorrhagic Escherichia coli infectionBillable›A04.4Other intestinal Escherichia coli infectionsBillable›A04.5Campylobacter enteritisBillable›A04.6Enteritis due to Yersinia enterocoliticaBillable›A04.7Enterocolitis due to Clostridium difficileNon-Billable›A04.71Enterocolitis due to Clostridium difficile, recurrentBillable›A04.72Enterocolitis due to Clostridium difficile, not specified as recurrentBillable›A04.8Other specified bacterial intestinal infectionsBillable›A04.9Bacterial intestinal infection, unspecifiedBillable›A05Other bacterial foodborne intoxications, not elsewhere classifiedNon-Billable›A05.0Foodborne staphylococcal intoxicationBillable›A05.1Botulism food poisoningBillable›A05.2Foodborne Clostridium perfringens [Clostridium welchii] intoxicationBillable›A05.3Foodborne Vibrio parahaemolyticus intoxicationBillable›A05.4Foodborne Bacillus cereus intoxicationBillable›A05.5Foodborne Vibrio vulnificus intoxicationBillable›A05.8Other specified bacterial foodborne intoxicationsBillable›A05.9Bacterial foodborne intoxication, unspecifiedBillable›A06AmebiasisNon-Billable›A06.0Acute amebic dysenteryBillable›A06.1Chronic intestinal amebiasisBillable›A06.2Amebic nondysenteric colitisBillable›A06.3Ameboma of intestineBillable›A06.4Amebic liver abscessBillable›A06.5Amebic lung abscessBillable›A06.6Amebic brain abscessBillable›A06.7Cutaneous amebiasisBillable›A06.8Amebic infection of other sitesNon-Billable›A06.81Amebic cystitisBillable›A06.82Other amebic genitourinary infectionsBillable›A06.89Other amebic infectionsBillable›A06.9Amebiasis, unspecifiedBillable›A07Other protozoal intestinal diseasesNon-Billable›A07.0BalantidiasisBillable›A07.1Giardiasis [lambliasis]Billable›A07.2CryptosporidiosisBillable›A07.3IsosporiasisBillable›A07.4CyclosporiasisBillable›A07.8Other specified protozoal intestinal diseasesBillable›A07.9Protozoal intestinal disease, unspecifiedBillable›A08Viral and other specified intestinal infectionsNon-Billable›A08.0Rotaviral enteritisBillable›A08.1Acute gastroenteropathy due to Norwalk agent and other small round virusesNon-Billable›A08.11Acute gastroenteropathy due to Norwalk agentBillable›A08.19Acute gastroenteropathy due to other small round virusesBillable›A08.2Adenoviral enteritisBillable›A08.3Other viral enteritisNon-Billable›A08.31Calicivirus enteritisBillable›A08.32Astrovirus enteritisBillable›A08.39Other viral enteritisBillable›A08.4Viral intestinal infection, unspecifiedBillable›A08.8Other specified intestinal infectionsBillable›A09Infectious gastroenteritis and colitis, unspecifiedBillable›