ICD-10-CM Code For Other Salmonella Infections: Group Overview

The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group A02 includes infections due to non-typhoidal Salmonella species, such as enteritis, localized infections, and systemic involvement like bacteremia. These ICD-10-CM diagnosis codes are used to document clinical presentations ranging from acute gastroenteritis to invasive disease, capturing severity, site of infection, and complications relevant to this group. Accurate coding within the ICD-10-CM A02 group supports proper claim adjudication and complete clinical documentation.

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ICD-10-CM A02: Other Salmonella Infections Overview

The ICD-10-CM A02 group encompasses infections caused by non-typhoidal Salmonella species that primarily affect the intestinal tract and sometimes cause systemic illness. These diagnoses target the gastrointestinal system and related complications such as enteritis and bacteremia. Accurate coding ensures clinical severity and site of infection are captured, which supports appropriate reimbursement and claims processing.

When to Use

Use codes from this group when a clinician documents infection due to non-typhoidal Salmonella with specified clinical manifestations or complications. Select the code that corresponds to the documented site of infection and whether the infection is localized or systemic.

ICD-10-CM Codes

11 rows

ICD-10-CM Code	Description
A02.0	Salmonella enteritis
A02.1	Salmonella sepsis
A02.20	Localized salmonella infection, unspecified
A02.21	Salmonella meningitis
A02.22	Salmonella pneumonia
A02.23	Salmonella arthritis
A02.24	Salmonella osteomyelitis
A02.25	Salmonella pyelonephritis
A02.29	Salmonella with other localized infection
A02.8	Other specified salmonella infections
A02.9	Salmonella infection, unspecified

DRG Codes

29 rows

DRG Code	Description
023	Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis with MCC or Antineoplastic Implant or Epilepsy with Neurostimulator
024	Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis without MCC
094	Bacterial and Tuberculous Infections of Nervous System with MCC
095	Bacterial and Tuberculous Infections of Nervous System with CC
096	Bacterial and Tuberculous Infections of Nervous System without CC/MCC
177	Respiratory Infections and Inflammations with MCC
178	Respiratory Infections and Inflammations with CC
179	Respiratory Infections and Inflammations without CC/MCC
371	Major Gastrointestinal Disorders and Peritoneal Infections with MCC
372	Major Gastrointestinal Disorders and Peritoneal Infections with CC
373	Major Gastrointestinal Disorders and Peritoneal Infections without CC/MCC
456	Spinal Fusion Except Cervical with Spinal Curvature, Malignancy, Infection or Extensive Fusions with MCC
457	Spinal Fusion Except Cervical with Spinal Curvature, Malignancy, Infection or Extensive Fusions with CC
458	Spinal Fusion Except Cervical with Spinal Curvature, Malignancy, Infection or Extensive Fusions without CC/MCC
539	Osteomyelitis with MCC
540	Osteomyelitis with CC
541	Osteomyelitis without CC/MCC
548	Septic Arthritis with MCC
549	Septic Arthritis with CC
550	Septic Arthritis without CC/MCC

Showing 1–20 of 29

Typical Clinical Scenarios

An adult presents to the emergency department with acute onset of profuse watery diarrhea, abdominal cramps, fever, and vomiting after attending a picnic where multiple attendees had similar illness. Stool culture returns positive for Salmonella enteritidis; the presentation is an acute enterocolitis requiring rehydration and short-term supportive care, so an intestinal salmonella infection code is assigned. Typical codes: A02.0, A02.2
An infant evaluated in outpatient pediatrics with persistent diarrhea for several weeks after an initial acute gastroenteritis; growth faltering and intermittent low-grade fever raise concern for ongoing infection with Salmonella identified on repeat stool testing. This represents a subacute or protracted intestinal salmonella infection managed longitudinally, and a specific code for non-typhoidal intestinal salmonella is used. Typical codes: A02.2, A02.9
An older hospitalized patient with a history of recent urinary catheterization develops fever and positive urine culture for Salmonella, with bacteriuria and dysuria; blood cultures are negative. Because the organism is Salmonella and the infection involves the urinary tract rather than the intestine, a code for other specified salmonella infections of extraintestinal sites is selected to capture this complication. Typical codes: A02.8, A02.9

Related Codes

A00-CHOLERA

ICD-10-CM Code For Cholera: Group Overview

A01-TYPHOID-AND-PARATYPHOID-FEVERS

ICD-10-CM Code For Typhoid And Paratyphoid Fevers: Group Overview

A03-SHIGELLOSIS

ICD-10-CM Code For Shigellosis: Group Overview

A04-OTHER-BACTERIAL-INTESTINAL-INFECTIONS

ICD-10-CM Code For Other Bacterial Intestinal Infections: Group Overview

A05-OTHER-BACTERIAL-FOODBORNE-INTOXICATIONS

ICD-10-CM Code For Other Bacterial Foodborne Intoxications Not Elsewhere Classified: Group Overview

A06-AMEBIASIS

ICD-10-CM Code For Amebiasis: Group Overview

A07-OTHER-PROTOZOAL-INTESTINAL-DISEASES

ICD-10-CM Code For Other Protozoal Intestinal Diseases: Group Overview

Coming soon

A08-VIRAL-AND-OTHER-SPECIFIED-INTESTINAL-INFECTIONS

ICD-10-CM Code For Viral And Other Specified Intestinal Infections: Group Overview

A09-INFECTIOUS-GASTROENTERITIS-AND-COLITIS

ICD-10-CM Code For Infectious Gastroenteritis And Colitis, Unspecified: Group Overview

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

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When to Use

ICD-10-CM Codes

11 rows

ICD-10-CM Code	Description
A02.0	Salmonella enteritis
A02.1	Salmonella sepsis
A02.20	Localized salmonella infection, unspecified
A02.21	Salmonella meningitis
A02.22	Salmonella pneumonia
A02.23	Salmonella arthritis
A02.24	Salmonella osteomyelitis
A02.25	Salmonella pyelonephritis
A02.29	Salmonella with other localized infection
A02.8	Other specified salmonella infections
A02.9	Salmonella infection, unspecified

DRG Codes

29 rows

DRG Code	Description
023	Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis with MCC or Antineoplastic Implant or Epilepsy with Neurostimulator
024	Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis without MCC
094	Bacterial and Tuberculous Infections of Nervous System with MCC
095	Bacterial and Tuberculous Infections of Nervous System with CC
096	Bacterial and Tuberculous Infections of Nervous System without CC/MCC
177	Respiratory Infections and Inflammations with MCC
178	Respiratory Infections and Inflammations with CC
179	Respiratory Infections and Inflammations without CC/MCC
371	Major Gastrointestinal Disorders and Peritoneal Infections with MCC
372	Major Gastrointestinal Disorders and Peritoneal Infections with CC
373	Major Gastrointestinal Disorders and Peritoneal Infections without CC/MCC
456	Spinal Fusion Except Cervical with Spinal Curvature, Malignancy, Infection or Extensive Fusions with MCC
457	Spinal Fusion Except Cervical with Spinal Curvature, Malignancy, Infection or Extensive Fusions with CC
458	Spinal Fusion Except Cervical with Spinal Curvature, Malignancy, Infection or Extensive Fusions without CC/MCC
539	Osteomyelitis with MCC
540	Osteomyelitis with CC
541	Osteomyelitis without CC/MCC
548	Septic Arthritis with MCC
549	Septic Arthritis with CC
550	Septic Arthritis without CC/MCC

Showing 1–20 of 29

Typical Clinical Scenarios

An adult presents to the emergency department with acute onset of profuse watery diarrhea, abdominal cramps, fever, and vomiting after attending a picnic where multiple attendees had similar illness. Stool culture returns positive for Salmonella enteritidis; the presentation is an acute enterocolitis requiring rehydration and short-term supportive care, so an intestinal salmonella infection code is assigned. Typical codes: A02.0, A02.2
An infant evaluated in outpatient pediatrics with persistent diarrhea for several weeks after an initial acute gastroenteritis; growth faltering and intermittent low-grade fever raise concern for ongoing infection with Salmonella identified on repeat stool testing. This represents a subacute or protracted intestinal salmonella infection managed longitudinally, and a specific code for non-typhoidal intestinal salmonella is used. Typical codes: A02.2, A02.9
An older hospitalized patient with a history of recent urinary catheterization develops fever and positive urine culture for Salmonella, with bacteriuria and dysuria; blood cultures are negative. Because the organism is Salmonella and the infection involves the urinary tract rather than the intestine, a code for other specified salmonella infections of extraintestinal sites is selected to capture this complication. Typical codes: A02.8, A02.9

Related Codes

A00-CHOLERA

ICD-10-CM Code For Cholera: Group Overview

A01-TYPHOID-AND-PARATYPHOID-FEVERS

ICD-10-CM Code For Typhoid And Paratyphoid Fevers: Group Overview

A03-SHIGELLOSIS

ICD-10-CM Code For Shigellosis: Group Overview

A04-OTHER-BACTERIAL-INTESTINAL-INFECTIONS

ICD-10-CM Code For Other Bacterial Intestinal Infections: Group Overview

A05-OTHER-BACTERIAL-FOODBORNE-INTOXICATIONS

ICD-10-CM Code For Other Bacterial Foodborne Intoxications Not Elsewhere Classified: Group Overview

A06-AMEBIASIS

ICD-10-CM Code For Amebiasis: Group Overview

A07-OTHER-PROTOZOAL-INTESTINAL-DISEASES

ICD-10-CM Code For Other Protozoal Intestinal Diseases: Group Overview

Coming soon

A08-VIRAL-AND-OTHER-SPECIFIED-INTESTINAL-INFECTIONS

ICD-10-CM Code For Viral And Other Specified Intestinal Infections: Group Overview

A09-INFECTIOUS-GASTROENTERITIS-AND-COLITIS

ICD-10-CM Code For Infectious Gastroenteritis And Colitis, Unspecified: Group Overview

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

Published by

Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.

ICD-10-CM Code For Other Salmonella Infections: Group Overview

Sign up for ICD-10-CM Code For Other Salmonella Infections: Group Overview policy alerts

ICD-10-CM A02: Other Salmonella Infections Overview

ICD-10-CM Code For Other Salmonella Infections: Group Overview

Sign up for ICD-10-CM Code For Other Salmonella Infections: Group Overview policy alerts

ICD-10-CM A02: Other Salmonella Infections Overview

When to Use

ICD-10-CM Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which diagnoses are included in the ICD-10-CM A02 group?

How does accurate coding in the A02 group support reimbursement?

Which A02 codes indicate localized versus systemic salmonella infection?

What types of clinical presentations are represented in the A02 group?

How are related DRGs relevant to coding A02 diagnoses?

References

When to Use

ICD-10-CM Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which diagnoses are included in the ICD-10-CM A02 group?

How does accurate coding in the A02 group support reimbursement?

Which A02 codes indicate localized versus systemic salmonella infection?

What types of clinical presentations are represented in the A02 group?

How are related DRGs relevant to coding A02 diagnoses?

References