MCMCB Pro
B73

B73Onchocerciasis

Non-billable headerICD-10-CM

B73 is a non-billable header ICD-10-CM code for onchocerciasis. It cannot be billed on its own: choose one of the more specific child codes below.

Includes

Conditions this code covers.

  • onchocerca volvulus infection
  • onchocercosis
  • river blindness

Other codes that can never be billed with B73

These codes carry an Excludes1 note pointing at B73. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading B73 alone.

  • H42Glaucoma in diseases classified elsewhere

Risk adjustment

B73 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.

Code to one of these instead B73

2 child codes. Green means billable.

Questions about B73

Is B73 a billable ICD-10-CM code?
No. B73 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does B73 sit in the tabular list?
Certain infectious and parasitic diseases (A00-B99), in the block Helminthiases (B65-B83).
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.