A56.4

A56.4: Chlamydial infection of pharynx

Billable / specific codeICD-10-CM

A56.4 is a billable, specific ICD-10-CM code for chlamydial infection of pharynx. It is valid for submission on a claim.

Check A56.4 with the rest of the claim: free scrubber

Excludes1 inherited from the categories above A56.4

A category’s note binds every code beneath it.

Written on A56: Other sexually transmitted chlamydial diseases

neonatal chlamydial conjunctivitis (P39.1)
neonatal chlamydial pneumonia (P23.1)

Excludes2 inherited from the categories above A56.4

Not part of this code, but both may be coded when both are present.

Written on A56: Other sexually transmitted chlamydial diseases

chlamydial lymphogranuloma (A55)
conditions classified to A74.-

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Alphabetic index entries that lead here

Chlamydia, chlamydial›pharyngitis
Pharyngitis›chlamydial
Infection, infected, infective›Chlamydia, chlamydial›pharynx
Disease, diseased›venereal›chlamydial NEC›pharynx

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under A56