A77.4

Non-billable

Ehrlichiosis

Ehrlichiosis

This is a header/category code. For billing purposes, use a more specific child code from the list below.

Status

Non-billable / Header

Block

A75-A79

Parent Code

A77

Child Codes

3

Coding Notes

Includes

Conditions included under this code

  • diseases generally recognized as communicable or transmissible

Excludes 1

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

  • certain localized infections - see body system-related chapters
  • anaplasmosis [A. phagocytophilum] (A79.82)
  • rickettsiosis due to Ehrlichia sennetsu (A79.81)

Excludes 2

Conditions not included here, but the patient may have both

  • carrier or suspected carrier of infectious disease (Z22.-)
  • infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
  • infectious and parasitic diseases specific to the perinatal period (P35-P39)
  • influenza and other acute respiratory infections (J00-J22)

Use Additional Code

Additional codes that should follow this code

  • code to identify resistance to antimicrobial drugs (Z16.-)

Child Codes (3)

Also Known As / Clinical Terms

Frequently Asked Questions

What is the ICD-10 code for ehrlichiosis?

The ICD-10-CM code for ehrlichiosis is A77.4. The full clinical description is "Ehrlichiosis". A77.4 is a non-billable header code. Use a more specific child code for billing purposes.

What does ICD-10 code A77.4 mean?

ICD-10-CM code A77.4 represents "Ehrlichiosis". It is classified under Chapter 1: Certain Infectious and Parasitic Diseases and is a non-billable header code. Use a more specific child code for billing purposes.

Is A77.4 a billable code?

No, A77.4 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 3 child codes under A77.4.

What chapter is A77.4 in?

A77.4 is in Chapter 1: Certain Infectious and Parasitic Diseases (codes A00-B99).

What codes cannot be used with A77.4?

A77.4 has Excludes1 notes indicating codes that cannot be used together with it, including: certain localized infections - see body system-related chapters; anaplasmosis [A. phagocytophilum] (A79.82); rickettsiosis due to Ehrlichia sennetsu (A79.81).

What are the subcategories under A77.4?

A77.4 has 3 child codes, including: A77.40 (Ehrlichiosis, unspecified), A77.41 (Ehrlichiosis chaffeensis [E. chaffeensis]), A77.49 (Other ehrlichiosis).

Are additional codes required with A77.4?

Yes, when using A77.4 you should also code: code to identify resistance to antimicrobial drugs (Z16.-).

What are the UMLS CUIs for A77.4?

A77.4 is linked to 1 UMLS Concept Unique Identifier: C0085399. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.

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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.