AutoICD API

B18.1

Billable

Chronic viral hepatitis B without delta-agent

Chronic viral hepatitis B without delta-agent

Status

Billable / Specific

Block

B15-B19

Parent Code

B18

ICD-11 Mapping

1 equivalent

Coding Notes

Inclusion Terms

Alternative clinical terms for this condition

  • Carrier of viral hepatitis B
  • Chronic (viral) hepatitis B

Includes

Conditions included under this code

  • diseases generally recognized as communicable or transmissible
  • Carrier of viral hepatitis

Excludes 1

Codes that cannot be used together with this code (mutual exclusion)

Excludes 2

Conditions not included here, but the patient may have both

Use Additional Code

Additional codes that should follow this code

Related Codes(4)
B18.0

Chronic viral hepatitis B with delta-agent

BillableB18.2

Chronic viral hepatitis C

BillableB18.8

Other chronic viral hepatitis

BillableB18.9

Chronic viral hepatitis, unspecified

Billable
ICD-11 Equivalents(1)

ICD-11 Equivalents

View full mapping

Corresponding ICD-11 codes from the WHO crosswalk mapping

1E51.0ZChronic hepatitis B, unspecifiedequivalentPrimary
Also Known As / Clinical Terms(107)

SNOMED CT

UMLS

Clinical Terms

  • hepatitis b chronic viral
  • Chronic viral hepatitis B
  • Hepatitis B Virus Infection, Chronic
  • CAH - Chronic aggressive hepatitis
  • CAH - Chronic active hepatitis
  • Hepatitis D virus infection
  • Chronic persistent hepatitis
  • Chronic viral hepatitis B with hepatitis D
  • Hepatitis B and hepatitis C
  • Chronic immune tolerant hepatitis B
  • Chronic active type B viral hepatitis
  • Viral hepatitis in pregnancy
  • Chronic persistent type B viral hepatitis
  • CPH - Chronic persistent hepatitis
  • Viral hepatitis carrier
  • Chronic viral hepatitis B without delta-agent (disorder)
  • Occult chronic type B viral hepatitis
  • Chronic Hepatitis B Virus Infection
  • Chronic aggressive type B viral hepatitis
  • Chronic hepatitis B co-occurrent with hepatitis C and hepatitis D
  • Chronic persistent viral hepatitis
  • Carrier of viral hepatitis B
  • Hepatic coma due to viral hepatitis B
  • Hepatic coma due to chronic hepatitis B
  • chronic hep b
  • Chronic viral hepatitis B with hepatic coma
  • Viral hepatitis B with hepatic coma
  • Occult hepatitis B infection
  • Chronic type B viral hepatitis (disorder)
  • Chronic Hepatitis B Infection
  • Chronic hepatitis B with hepatic coma
  • Chronic hepatitis B with hepatitis C and hepatitis D
  • Chronic type B viral hepatitis
  • Chronic viral hepatitis B with delta-agent
  • Chronic Hepatitis B
  • Chronic aggressive viral hepatitis
  • Chronic hepatitis B during pregnancy
  • Viral hepatitis complicating pregnancy, childbirth and the puerperium
  • Chronic active hepatitis
  • Liver disorder in pregnancy
  • Chronic active viral hepatitis
  • Viral hepatitis D
  • Viral hepatitis type D
  • Hepatitis B, Chronic
  • Chronic (viral) hepatitis B
  • Hepatitis B carrier
  • Chronic hepatitis B in pregnancy
  • Hepatitis D
  • Viral hepatitis in mother complicating pregnancy
  • hepatitis b chronic
Frequently Asked Questions
What is the ICD-10 code for chronic viral hepatitis b without delta-agent?

The ICD-10-CM code for chronic viral hepatitis b without delta-agent is B18.1. The full clinical description is "Chronic viral hepatitis B without delta-agent". B18.1 is a billable/specific code that can be used on insurance claims and medical billing.

What does ICD-10 code B18.1 mean?

ICD-10-CM code B18.1 represents “Chronic viral hepatitis B without delta-agent”. It is classified under Chapter 1: Certain Infectious and Parasitic Diseases and is a billable/specific code that can be used on a claim.

Is B18.1 a billable code?

Yes, B18.1 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.

What chapter is B18.1 in?

B18.1 is in Chapter 1: Certain Infectious and Parasitic Diseases (codes A00-B99).

What codes cannot be used with B18.1?

B18.1 has Excludes1 notes indicating codes that cannot be used together with it, including: certain localized infections - see body system-related chapters; sequelae of viral hepatitis (B94.2).

Are additional codes required with B18.1?

Yes, when using B18.1, also report: resistance to antimicrobial drugs (Z16.-).

What SNOMED CT codes does B18.1 map to?

B18.1 maps to 23 SNOMED CT concepts: 197284004, 41889008, 50167007, 66870002, 1116000, and 18 more. SNOMED CT is a clinical terminology used in electronic health records.

What are the UMLS CUIs for B18.1?

B18.1 is linked to 3 UMLS Concept Unique Identifiers: C2911652, C0524909, C0276610. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.

How does B18.1 relate to ICF functioning codes?

ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like chronic viral hepatitis b without delta-agent affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.

What is the ICD-11 equivalent of B18.1?

B18.1 maps to the ICD-11 code: 1E51.0Z (Chronic hepatitis B, unspecified).

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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.