B44.9 Aspergillosis, unspecified

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

Applies from B44 Aspergillosis

Includes

• aspergilloma

Risk adjustment (HCC)

• CMS-HCC V28: HCC 6 — Opportunistic Infections
• CMS-HCC V22: HCC 6 — Opportunistic Infections
• RxHCC V08: HCC 5 — Opportunistic Infections
• ESRD V24: HCC 6

MS-DRG index

Defines the logic of DRG(s) 791 in MDC 15.

Approximate ICD-9-CM (GEMs)

• 117.3 Aspergillosis (approximate)

Code annotations containing back-references to B44.9

Back-references to B44

• Type 2 Excludes: J82 Pulmonary eosinophilia, not elsewhere classified ("pulmonary eosinophilia due to aspergillosis (B44.-)")
• Code First: M01 Direct infections of joint in infectious and parasitic diseases classified elsewhere ("mycoses (B35-B49)")

Diagnosis Index entries for B44.9

• Aspergillosis (with pneumonia)
• Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved) › in (due to) › aspergillosis

Nearby codes

• B44.2 Tonsillar aspergillosis
• B44.7 Disseminated aspergillosis
• B44.8 Other forms of aspergillosis
• B44.81 Allergic bronchopulmonary aspergillosis
• B44.89 Other forms of aspergillosis
• B44.9 Aspergillosis, unspecified (this code)