AutoICD API

A56.4

Billable

Chlamydial infection of pharynx

Chlamydial infection of pharynx

Status

Billable / Specific

Block

A50-A64

Parent Code

A56

Coding Notes

Includes

Conditions included under this code

  • diseases generally recognized as communicable or transmissible
  • sexually transmitted diseases due to Chlamydia
  • trachomatis

Excludes 1

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

  • certain localized infections - see body system-related chapters
  • nonspecific and nongonococcal urethritis (N34.1)
  • Reiter's disease (M02.3-)
  • neonatal chlamydial conjunctivitis (P39.1)
  • neonatal chlamydial pneumonia (P23.1)

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)
  • human immunodeficiency virus [HIV] disease (B20)
  • chlamydial lymphogranuloma (A55)
  • conditions classified to A74.-

Use Additional Code

Additional codes that should follow this code

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

Also Known As / Clinical Terms

SNOMED CT

UMLS

Frequently Asked Questions

What is ICD-10 code A56.4?

ICD-10-CM code A56.4 represents "Chlamydial infection of pharynx". It is a billable/specific code that can be used on a claim.

Is A56.4 a billable code?

Yes, A56.4 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.

What chapter is A56.4 in?

A56.4 is in Chapter 1: Certain Infectious and Parasitic Diseases (codes A00-B99).

What codes cannot be used with A56.4?

A56.4 has Excludes1 notes indicating codes that cannot be used together with it, including: certain localized infections - see body system-related chapters; nonspecific and nongonococcal urethritis (N34.1); Reiter's disease (M02.3-); and 2 more.

Are additional codes required with A56.4?

Yes, when using A56.4 you should also code: code to identify resistance to antimicrobial drugs (Z16.-).

What SNOMED CT codes does A56.4 map to?

A56.4 maps to 2 SNOMED CT concepts: 232403001, 446594000. SNOMED CT is a clinical terminology used in electronic health records.

What are the UMLS CUIs for A56.4?

A56.4 is linked to 1 UMLS Concept Unique Identifier: C0149965. 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.