ICD-10 · PDGM grouping
B35-B49 — Mycoses
Every ICD-10-CM code in this range and the PDGM clinical group CMS assigns to it, read from the CMS grouper crosswalk v07.2.26.
ICD-10-CM FY2027 · CMS grouper v07.2.26
Codes in range
104
No clinical group
0
A period cannot be grouped from these.
Barred as primary
0
CMS rejects these in the primary position.
Where these codes group
100 of the 104 codes in B35-B49 group to MMTA - Infectious Disease, Neoplasms, and Blood-Forming Diseases, but the range is not uniform — it spreads across 2 clinical groups. Every code here is assigned a group.
Code families in B35-B49
One page per three-character family: every code in it, whether it can lead a claim, its clinical group and comorbidity subgroup.
- B35Dermatophytosis9 codes
- B36Other superficial mycoses6 codes
- B37Candidiasis17 codes
- B38Coccidioidomycosis9 codes
- B39Histoplasmosis7 codes
- B40Blastomycosis8 codes
- B41Paracoccidioidomycosis4 codes
- B42Sporotrichosis7 codes
- B43Chromomycosis and pheomycotic abscess5 codes
- B44Aspergillosis7 codes
- B45Cryptococcosis7 codes
- B46Zygomycosis8 codes
- B47Mycetoma3 codes
- B48Other mycoses, not elsewhere classified6 codes
- B49Unspecified mycosis1 code
Every code in B35-B49
Descriptions are CMS’s own, abbreviated as CMS abbreviates them.
| Code | Description | Clinical group | Primary position |
|---|---|---|---|
| B350 | Tinea barbae and tinea capitis | K | Can lead a claim |
| B351 | Tinea unguium | K | Can lead a claim |
| B352 | Tinea manuum | K | Can lead a claim |
| B353 | Tinea pedis | K | Can lead a claim |
| B354 | Tinea corporis | K | Can lead a claim |
| B355 | Tinea imbricata | K | Can lead a claim |
| B356 | Tinea cruris | K | Can lead a claim |
| B358 | Other dermatophytoses | K | Can lead a claim |
| B359 | Dermatophytosis, unspecified | K | Can lead a claim |
| B360 | Pityriasis versicolor | K | Can lead a claim |
| B361 | Tinea nigra | K | Can lead a claim |
| B362 | White piedra | K | Can lead a claim |
| B363 | Black piedra | K | Can lead a claim |
| B368 | Other specified superficial mycoses | K | Can lead a claim |
| B369 | Superficial mycosis, unspecified | K | Can lead a claim |
| B370 | Candidal stomatitis | K | Can lead a claim |
| B371 | Pulmonary candidiasis | K | Can lead a claim |
| B372 | Candidiasis of skin and nail | K | Can lead a claim |
| B3731 | Acute candidiasis of vulva and vagina | K | Can lead a claim |
| B3732 | Chronic candidiasis of vulva and vagina | K | Can lead a claim |
| B3741 | Candidal cystitis and urethritis | K | Can lead a claim |
| B3742 | Candidal balanitis | K | Can lead a claim |
| B3749 | Other urogenital candidiasis | K | Can lead a claim |
| B375 | Candidal meningitis | B | Can lead a claim |
| B376 | Candidal endocarditis | K | Can lead a claim |
| B377 | Candidal sepsis | B | Can lead a claim |
| B3781 | Candidal esophagitis | K | Can lead a claim |
| B3782 | Candidal enteritis | K | Can lead a claim |
| B3783 | Candidal cheilitis | K | Can lead a claim |
| B3784 | Candidal otitis externa | K | Can lead a claim |
| B3789 | Other sites of candidiasis | K | Can lead a claim |
| B379 | Candidiasis, unspecified | K | Can lead a claim |
| B380 | Acute pulmonary coccidioidomycosis | K | Can lead a claim |
| B381 | Chronic pulmonary coccidioidomycosis | K | Can lead a claim |
| B382 | Pulmonary coccidioidomycosis, unspecified | K | Can lead a claim |
| B383 | Cutaneous coccidioidomycosis | K | Can lead a claim |
| B384 | Coccidioidomycosis meningitis | B | Can lead a claim |
| B387 | Disseminated coccidioidomycosis | K | Can lead a claim |
| B3881 | Prostatic coccidioidomycosis | K | Can lead a claim |
| B3889 | Other forms of coccidioidomycosis | K | Can lead a claim |
| B389 | Coccidioidomycosis, unspecified | K | Can lead a claim |
| B390 | Acute pulmonary histoplasmosis capsulati | K | Can lead a claim, code first applies |
| B391 | Chronic pulmonary histoplasmosis capsulati | K | Can lead a claim, code first applies |
| B392 | Pulmonary histoplasmosis capsulati, unspecified | K | Can lead a claim, code first applies |
| B393 | Disseminated histoplasmosis capsulati | K | Can lead a claim, code first applies |
| B394 | Histoplasmosis capsulati, unspecified | K | Can lead a claim, code first applies |
| B395 | Histoplasmosis duboisii | K | Can lead a claim, code first applies |
| B399 | Histoplasmosis, unspecified | K | Can lead a claim, code first applies |
| B400 | Acute pulmonary blastomycosis | K | Can lead a claim |
| B401 | Chronic pulmonary blastomycosis | K | Can lead a claim |
| B402 | Pulmonary blastomycosis, unspecified | K | Can lead a claim |
| B403 | Cutaneous blastomycosis | K | Can lead a claim |
| B407 | Disseminated blastomycosis | K | Can lead a claim |
| B4081 | Blastomycotic meningoencephalitis | B | Can lead a claim |
| B4089 | Other forms of blastomycosis | K | Can lead a claim |
| B409 | Blastomycosis, unspecified | K | Can lead a claim |
| B410 | Pulmonary paracoccidioidomycosis | K | Can lead a claim |
| B417 | Disseminated paracoccidioidomycosis | K | Can lead a claim |
| B418 | Other forms of paracoccidioidomycosis | K | Can lead a claim |
| B419 | Paracoccidioidomycosis, unspecified | K | Can lead a claim |
| B420 | Pulmonary sporotrichosis | K | Can lead a claim |
| B421 | Lymphocutaneous sporotrichosis | K | Can lead a claim |
| B427 | Disseminated sporotrichosis | K | Can lead a claim |
| B4281 | Cerebral sporotrichosis | K | Can lead a claim |
| B4282 | Sporotrichosis arthritis | K | Can lead a claim |
| B4289 | Other forms of sporotrichosis | K | Can lead a claim |
| B429 | Sporotrichosis, unspecified | K | Can lead a claim |
| B430 | Cutaneous chromomycosis | K | Can lead a claim |
| B431 | Pheomycotic brain abscess | K | Can lead a claim |
| B432 | Subcutaneous pheomycotic abscess and cyst | K | Can lead a claim |
| B438 | Other forms of chromomycosis | K | Can lead a claim |
| B439 | Chromomycosis, unspecified | K | Can lead a claim |
| B440 | Invasive pulmonary aspergillosis | K | Can lead a claim |
| B441 | Other pulmonary aspergillosis | K | Can lead a claim |
| B442 | Tonsillar aspergillosis | K | Can lead a claim |
| B447 | Disseminated aspergillosis | K | Can lead a claim |
| B4481 | Allergic bronchopulmonary aspergillosis | K | Can lead a claim |
| B4489 | Other forms of aspergillosis | K | Can lead a claim |
| B449 | Aspergillosis, unspecified | K | Can lead a claim |
| B450 | Pulmonary cryptococcosis | K | Can lead a claim |
| B451 | Cerebral cryptococcosis | K | Can lead a claim |
| B452 | Cutaneous cryptococcosis | K | Can lead a claim |
| B453 | Osseous cryptococcosis | K | Can lead a claim |
| B457 | Disseminated cryptococcosis | K | Can lead a claim |
| B458 | Other forms of cryptococcosis | K | Can lead a claim |
| B459 | Cryptococcosis, unspecified | K | Can lead a claim |
| B460 | Pulmonary mucormycosis | K | Can lead a claim |
| B461 | Rhinocerebral mucormycosis | K | Can lead a claim |
| B462 | Gastrointestinal mucormycosis | K | Can lead a claim |
| B463 | Cutaneous mucormycosis | K | Can lead a claim |
| B464 | Disseminated mucormycosis | K | Can lead a claim |
| B465 | Mucormycosis, unspecified | K | Can lead a claim |
| B468 | Other zygomycoses | K | Can lead a claim |
| B469 | Zygomycosis, unspecified | K | Can lead a claim |
| B470 | Eumycetoma | K | Can lead a claim |
| B471 | Actinomycetoma | K | Can lead a claim |
| B479 | Mycetoma, unspecified | K | Can lead a claim |
| B480 | Lobomycosis | K | Can lead a claim |
| B481 | Rhinosporidiosis | K | Can lead a claim |
| B482 | Allescheriasis | K | Can lead a claim |
| B483 | Geotrichosis | K | Can lead a claim |
| B484 | Penicillosis | K | Can lead a claim |
| B488 | Other specified mycoses | K | Can lead a claim |
| B49 | Unspecified mycosis | K | Can lead a claim |
Source: CMS HH PPS Grouper Software v07.2.26, effective 2026-10-01. This is the crosswalk Medicare runs a claim through. Grouping also depends on admission source, timing, the OASIS functional items and the rest of the diagnosis list.
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