Emergency: 119
AMDA-IMIC

J22 Unspecified acute lower respiratory infection

Billable

Block: Other acute lower respiratory infections (J20-J22)

Includes

  • Acute (lower) respiratory (tract) infection NOS

Excludes 1 (cannot be coded together)

  • upper respiratory infection (acute) (J06.9)
✓
This category is a complete, billable diagnosis code.

No additional specificity is required — submit J22 directly on claims and documentation without a subcode extension.

Last reviewed: September 2026