Onchocerciasis (B73) ICD-10-CM
The B73 code range covers onchocerciasis with 7 ICD-10-CM diagnosis codes. 5 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Includes
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
- onchocerca volvulus infection
- onchocercosis
- river blindness
Codes in the B73 Range 7 codes · 5 billable
- B73 OnchocerciasisNon-billable
- B73.0 Onchocerciasis with eye diseaseNon-billable
- B73.00 Onchocerciasis with eye involvement, unspecified
- B73.01 Onchocerciasis with endophthalmitis
- B73.02 Onchocerciasis with glaucoma
- B73.09 Onchocerciasis with other eye involvement
- B73.1 Onchocerciasis without eye disease
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the B73 range.
Onchocerciasis
Infection with nematodes of the genus ONCHOCERCA. Characteristics include the presence of firm subcutaneous nodules filled with adult worms, PRURITUS, and ocular lesions.
Onchocerciasis, Ocular
Filarial infection of the eyes transmitted from person to person by bites of Onchocerca volvulus-infected black flies. The microfilariae of Onchocerca are thus deposited beneath the skin. They migrate through various tissues including the eye. Those persons infected have impaired vision and up to 20% are blind. The incidence of eye lesions has been reported to be as high as 30% in Central America and parts of Africa.
About the B73 Code Range
Onchocerciasis is an infection caused by Onchocerca worms. It can involve firm lumps under the skin containing adult worms, itching, and eye lesions.
The category separates cases with eye disease, B73.0, from those without it, B73.1. The eye-disease branch distinguishes unspecified eye involvement, named eye conditions, and other eye involvement.
River blindness is another name for onchocerciasis.
Questions About This Page
How many billable codes are in the B73 range?
Of the 7 codes in this range, 5 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the B73 range classify?
The range classifies onchocerciasis. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
