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A50.03

A50.03Early congenital syphilitic pharyngitis

Billable / specific codeICD-10-CM

A50.03 is a billable, specific ICD-10-CM code for early congenital syphilitic pharyngitis. It is valid for submission on a claim.

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Early congenital syphilitic laryngitis

Risk adjustment

A50.03 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

How A50.03 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to A50.03.

  • Catarrh, catarrhaldue to congenital syphilis
  • Pharyngitissyphilitic, congenital(early)
  • Laryngitissyphiliticcongenitalearly
  • Laryngotracheitissyphiliticcongenitalearly
  • Syphilis, syphiliticcongenitalearly, or less than 2 years after birth NECsymptomaticpharyngitis

Related codes at this level

Codes that share A50.0. If A50.03 is not quite right, the correct code is usually one of these.

Questions about A50.03

Is A50.03 a billable ICD-10-CM code?
Yes. A50.03 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does A50.03 sit in the tabular list?
Certain infectious and parasitic diseases (A00-B99), in the block Infections with a predominantly sexual mode of transmission (A50-A64).
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.