First rib

Sibling codes

• XA2U21 – Third rib
• XA2WC3 – Seventh rib
• XA31L8 – Fifth rib
• XA31V8 – Ninth rib
• XA3VH4 – Eleventh rib
• XA4SQ6 – Fourth rib
• XA54R4 – Tenth rib
• XA63Z2 – Sixth rib
• XA6W52 – Twelfth rib
• XA7XY2 – Second rib
• XA9WQ3 – Eighth rib

Foundation entity

First rib – http://id.who.int/icd/entity/2059636601