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A70 ICD-10-CM Code: Chlamydia psittaci infections

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Official description

A70

Chlamydia psittaci infections

ICD-10-CM diagnosis code · United States clinical modification

Where A70 sits

  1. 1

    Chapter 1

    Certain infectious and parasitic diseases (A00-B99)

  2. 2

    Section

    Other diseases caused by chlamydiae (A70-A74)

  3. 3

    Category A70

    Chlamydia psittaci infections

  4. 4

    Code A70

    Chlamydia psittaci infections

Notes for this code

Inclusion terms

  • Ornithosis
  • Parrot fever
  • Psittacosis

Code first

No “code first” instruction is listed for A70.

Use additional code

No “use additional code” instruction is listed for A70.

Excludes1

Conditions that should not be reported together with this code.

No Excludes1 note is listed for A70.

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for A70.

Source and release

Data release
U.S. ICD-10-CM · FY 2027
Effective date
Oct 1, 2026

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Review the CDC/NCHS ICD-10-CM source

Frequently asked questions

What does ICD-10-CM code A70 mean?

A70 is the FY 2027 U.S. ICD-10-CM code for “Chlamydia psittaci infections.”

Is A70 a billable or specific ICD-10-CM code?

Yes. In the FY 2027 reference data used on this page, A70 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.

Where is A70 located in ICD-10-CM?

A70 is listed in Chapter 1, Certain infectious and parasitic diseases (A00-B99), within Other diseases caused by chlamydiae (A70-A74) (A70–A74), under category A70, Chlamydia psittaci infections.

What coding notes are listed for A70?

Its listed inclusion terms are Ornithosis; Parrot fever; Psittacosis. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.