ICD-10 Code for Cryptococcosis
Also indexed as (infection) (neoformans)
The ICD-10-CM code for cryptococcosis is B45.9 — Cryptococcosis, unspecified. This is the code the Alphabetic Index gives for cryptococcosis with no further qualifier, valid for FY2027 (October 1, 2026 – September 30, 2027).
B45.9 is billable but unspecified. If the documentation names a type, site or cause, one of the more specific codes below is likely expected.
Which cryptococcosis code should you use?
The Alphabetic Index lists 7 codes under Cryptococcosis, cryptococcus. Which one applies depends on the qualifier documented in the record — the type, site, cause, or associated condition. Find the qualifier below, then verify the code in the Tabular List before using it.
By type
| bone | B45.3 | Osseous cryptococcosis | |
| cerebral | B45.1 | Cerebral cryptococcosis | |
| cutaneous | B45.2 | Cutaneous cryptococcosis | |
| disseminated | B45.7 | Disseminated cryptococcosis | |
| generalized | B45.7 | Disseminated cryptococcosis | |
| meningitis | B45.1 | Cerebral cryptococcosis | |
| meningocerebralis | B45.1 | Cerebral cryptococcosis | |
| osseous | B45.3 | Osseous cryptococcosis | |
| pulmonary | B45.0 | Pulmonary cryptococcosis | |
| skin | B45.2 | Cutaneous cryptococcosis | |
| specified NEC | B45.8 | Other forms of cryptococcosis |
Index terms and codes are reproduced from the official ICD-10-CM FY2027 release. The Alphabetic Index is a finding aid — a code must always be verified in the Tabular List before it is reported. Data sources