Chromomycosis and pheomycotic abscess (B43) ICD-10-CM
The B43 code range covers chromomycosis and pheomycotic abscess with 6 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.
Codes in the B43 Range 6 codes · 5 billable
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the B43 range.
Chromoblastomycosis
Scaly papule or warty growth, caused by five fungi, that spreads as a result of satellite lesions affecting the foot or leg. The extremity may become swollen and, at its distal portion, covered with various nodular, tumorous, verrucous lesions that resemble cauliflower. In rare instances, the disease may begin on the hand or wrist and involve the entire upper extremity. (Arnold, Odom, and James, Andrew's Diseases of the Skin, 8th ed, p362)
About the B43 Code Range
Chromomycosis and pheomycotic abscesses appear among fungal infections. The subdivisions distinguish the affected site and form.
B43.0 identifies chromomycosis of the skin. B43.1 identifies a pheomycotic brain abscess. B43.2 identifies a pheomycotic abscess or cyst beneath the skin. B43.8 covers other forms of chromomycosis, while B43.9 leaves its form unspecified.
Questions About This Page
How many billable codes are in the B43 range?
Of the 6 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 B43 range classify?
The range classifies chromomycosis and pheomycotic abscess. 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.
