ICD-10-CM Code For Acute Hepatitis A: Group Overview

The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group B15 includes codes for acute hepatitis A infection and its clinical presentations, such as symptomatic acute liver inflammation due to hepatitis A virus. These ICD-10-CM diagnosis codes are used to document episodes of acute viral hepatitis A, capturing disease severity, organ involvement, and clinical complexity relevant to liver injury and systemic symptoms. Accurate coding within the ICD-10-CM B15 group supports proper claim adjudication and complete clinical documentation for appropriate reimbursement.

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ICD-10-CM B15: Acute Hepatitis A Overview

The ICD-10-CM B15 group represents acute infection with hepatitis A virus affecting the liver and related clinical manifestations. These diagnoses target the hepatobiliary system and acute viral hepatitis presentations. Accurate coding matters for reimbursement because it ensures clinical encounters are properly documented and supports correct claim processing.

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ICD-10-CM Code For Acute Hepatitis A: Group Overview

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ICD-10-CM B15: Acute Hepatitis A Overview

When to Use

Use a code from this group when the clinical documentation specifies an acute hepatitis A infection or acute liver inflammation attributed to hepatitis A virus. Select the appropriate code to reflect the presence of symptoms, severity, and any documented complications related to the acute infection.

ICD-10-CM Codes

2 rows

ICD-10-CM Code	Description
B15.0	Hepatitis A with hepatic coma
B15.9	Hepatitis A without hepatic coma

DRG Codes

3 rows

DRG Code	Description
441	Disorders of Liver Except Malignancy, Cirrhosis or Alcoholic Hepatitis with MCC
442	Disorders of Liver Except Malignancy, Cirrhosis or Alcoholic Hepatitis with CC
443	Disorders of Liver Except Malignancy, Cirrhosis or Alcoholic Hepatitis without CC/MCC

Typical Clinical Scenarios

An adult presents to the emergency department with sudden onset high fever, severe malaise, anorexia, nausea, right upper quadrant abdominal pain, and jaundice after recent travel to a region with known hepatitis A outbreaks. Laboratory evaluation shows markedly elevated aminotransferases and positive hepatitis A IgM confirming an acute infection, so an acute hepatitis A diagnosis is assigned at the encounter. Typical codes: B15.0, B15.9
A pediatric patient is brought to urgent care with low-grade fever, vomiting, diffuse abdominal discomfort, and new onset jaundice following exposure to a household contact with confirmed hepatitis A; outpatient laboratory testing demonstrates hepatitis A IgM positive, and the child is managed conservatively with follow-up. Because this is a new, self-limited viral hepatitis A infection identified in the clinic setting, an acute hepatitis A code is used. Typical codes: B15.0, B15.9
An adult with previously diagnosed acute hepatitis A is hospitalized for fulminant hepatic failure characterized by coagulopathy, encephalopathy, and rising bilirubin levels requiring intensive monitoring and supportive care; testing confirms hepatitis A as the etiologic agent, so an acute hepatitis A diagnosis is documented as the underlying cause of the current hepatic decompensation. Typical codes: B15.0, B15.9

Related Codes

B16-ACUTE-HEPATITIS-B

ICD-10-CM Code For Acute Hepatitis B: Group Overview

B17-OTHER-ACUTE-VIRAL-HEPATITIS

ICD-10-CM Code For Other Acute Viral Hepatitis: Group Overview

B18-CHRONIC-VIRAL-HEPATITIS

ICD-10-CM Code For Chronic Viral Hepatitis: Group Overview

B19-UNSPECIFIED-VIRAL-HEPATITIS

ICD-10-CM Code For Unspecified Viral Hepatitis: 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

2 rows

ICD-10-CM Code	Description
B15.0	Hepatitis A with hepatic coma
B15.9	Hepatitis A without hepatic coma

DRG Codes

3 rows

DRG Code	Description
441	Disorders of Liver Except Malignancy, Cirrhosis or Alcoholic Hepatitis with MCC
442	Disorders of Liver Except Malignancy, Cirrhosis or Alcoholic Hepatitis with CC
443	Disorders of Liver Except Malignancy, Cirrhosis or Alcoholic Hepatitis without CC/MCC

Typical Clinical Scenarios

An adult presents to the emergency department with sudden onset high fever, severe malaise, anorexia, nausea, right upper quadrant abdominal pain, and jaundice after recent travel to a region with known hepatitis A outbreaks. Laboratory evaluation shows markedly elevated aminotransferases and positive hepatitis A IgM confirming an acute infection, so an acute hepatitis A diagnosis is assigned at the encounter. Typical codes: B15.0, B15.9
A pediatric patient is brought to urgent care with low-grade fever, vomiting, diffuse abdominal discomfort, and new onset jaundice following exposure to a household contact with confirmed hepatitis A; outpatient laboratory testing demonstrates hepatitis A IgM positive, and the child is managed conservatively with follow-up. Because this is a new, self-limited viral hepatitis A infection identified in the clinic setting, an acute hepatitis A code is used. Typical codes: B15.0, B15.9
An adult with previously diagnosed acute hepatitis A is hospitalized for fulminant hepatic failure characterized by coagulopathy, encephalopathy, and rising bilirubin levels requiring intensive monitoring and supportive care; testing confirms hepatitis A as the etiologic agent, so an acute hepatitis A diagnosis is documented as the underlying cause of the current hepatic decompensation. Typical codes: B15.0, B15.9

Related Codes

B16-ACUTE-HEPATITIS-B

ICD-10-CM Code For Acute Hepatitis B: Group Overview

B17-OTHER-ACUTE-VIRAL-HEPATITIS

ICD-10-CM Code For Other Acute Viral Hepatitis: Group Overview

B18-CHRONIC-VIRAL-HEPATITIS

ICD-10-CM Code For Chronic Viral Hepatitis: Group Overview

B19-UNSPECIFIED-VIRAL-HEPATITIS

ICD-10-CM Code For Unspecified Viral Hepatitis: 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 Acute Hepatitis A: Group Overview

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ICD-10-CM B15: Acute Hepatitis A Overview

ICD-10-CM Code For Acute Hepatitis A: Group Overview

Sign up for ICD-10-CM Code For Acute Hepatitis A: Group Overview policy alerts

ICD-10-CM B15: Acute Hepatitis A Overview

When to Use

ICD-10-CM Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which ICD-10-CM codes are included in the B15 group for acute hepatitis A?

What clinical presentations does ICD-10-CM B15 capture?

How does accurate coding in the B15 group affect reimbursement?

Which DRGs are related to the B15 group for acute hepatitis A?

What is the focus of the ICD-10-CM B15 group overview?

References

When to Use

ICD-10-CM Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which ICD-10-CM codes are included in the B15 group for acute hepatitis A?

What clinical presentations does ICD-10-CM B15 capture?

How does accurate coding in the B15 group affect reimbursement?

Which DRGs are related to the B15 group for acute hepatitis A?

What is the focus of the ICD-10-CM B15 group overview?

References