ICD-10-CM Tabular Index · Chapter 1 · FY 2026 A70

Chlamydia psittaci infections (A70) ICD-10-CM

The A70 code range covers chlamydia psittaci infections with 1 ICD-10-CM diagnosis codes. 1 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.

✓ Built from the official CMS FY 2026 datasetEffective Oct 1, 2025 – Sep 30, 2026
1
Diagnosis Codes
1
Billable Codes
A70
Code Range
A70–A74
Parent Section

Inclusion Terms

These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.

ICD-10-CM

Codes in the A70 Range 1 codes · 1 billable

1 of 1 shown
  • A70 Chlamydia psittaci infections

About the A70 Code Range

ICD-10 code A70 covers infections caused by Chlamydia psittaci, a specific type of bacterial infection often linked to exposure to birds. This code is used to classify illnesses such as ornithosis and pneumonia resulting from this bacteria.

These infections, also known as ornithosis or psittacosis, can cause symptoms ranging from mild respiratory issues to severe pneumonia. Synonyms like "pneumonia caused by Chlamydiaceae" and "exanthem caused by Chlamydophila psittaci" help clarify that the ICD-10 code A70 applies to infections acquired through contact with birds or bird droppings. Medical coders rely on this code to accurately document and bill for illnesses specifically linked to Chlamydia psittaci, distinguishing them from other bacterial respiratory infections. Understanding these alternate terms ensures precise coding and aids healthcare professionals in tracking epidemiology of this zoonotic disease.

Questions About This Page

How many billable codes are in the A70 range?

Of the 1 codes in this range, 1 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.

What does the A70 range classify?

The range classifies chlamydia psittaci infections. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.

Related References

Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.