ICD-9-CM Vol. 1 Diagnostic Codes

8. DISEASES OF THE RESPIRATORY SYSTEM (460-519)

section notes

ACUTE RESPIRATORY INFECTIONS (460-466)

section notes

461 Acute sinusitis

section notes
461.0 Ac maxillary sinusitis
461.1 Ac frontal sinusitis
461.2 Ac ethmoidal sinusitis
461.3 Ac sphenoidal sinusitis
461.8 Other acute sinusitis
461.9 Acute sinusitis NOS
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