Sporotrichosis (B42) ICD-10-CM
The B42 code range covers sporotrichosis with 9 ICD-10-CM diagnosis codes. 7 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Codes in the B42 Range 9 codes · 7 billable
- B42 SporotrichosisNon-billable
- B42.0 Pulmonary sporotrichosis
- B42.1 Lymphocutaneous sporotrichosis
- B42.7 Disseminated sporotrichosis
- B42.8 Other forms of sporotrichosisNon-billable
- B42.81 Cerebral sporotrichosis
- B42.82 Sporotrichosis arthritis
- B42.89 Other forms of sporotrichosis
- B42.9 Sporotrichosis, unspecified
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the B42 range.
Sporothrix
A mitosporic Ophiostomataceae fungal genus, whose species Sporothrix schenckii is a well-known animal pathogen. The conidia of this soil fungus may be inhaled causing a primary lung infection, or may infect independently via skin punctures.
Sporotrichosis
The commonest and least serious of the deep mycoses, characterized by nodular lesions of the cutaneous and subcutaneous tissues. It is caused by inhalation of contaminated dust or by infection of a wound with SPOROTHRIX.
About the B42 Code Range
ICD-10 code B42 groups diagnoses of sporotrichosis, a fungal infection caused by Sporothrix schenkii. These codes are used to document various manifestations of this infection, ranging from skin involvement to systemic disease.
This section includes specific codes tailored to the infection's location and severity. For example, B42.0 covers pulmonary sporotrichosis, also known as extracutaneous sporotrichosis affecting the lungs. The code B42.1 is for lymphocutaneous sporotrichosis, the most common form presenting with skin and lymph node lesions. B42.7 captures disseminated sporotrichosis, where the infection spreads widely, sometimes described as disseminated cutaneous mycosis. Other codes, like B42.81 for cerebral sporotrichosis (fungal meningitis) and B42.82 for sporotrichosis arthritis, address rarer manifestations involving the brain or joints. The unspecified code B42.9 is used when sporotrichosis is diagnosed but not specified beyond the general infection. Using these codes correctly helps identify the precise form of sporotrichosis for clinical and reporting purposes.
Questions About This Page
How many billable codes are in the B42 range?
Of the 9 codes in this range, 7 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 B42 range classify?
The range classifies sporotrichosis. 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.
