O20-O29

Other maternal disorders predominantly related to pregnancy

Block coding notes

Excludes 1 never together · Excludes 2 may co-exist

Excludes 2

maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48) maternal diseases classifiable elsewhere but complicating pregnancy, labor and delivery, and the puerperium (O98-O99)

Codes in this block

343 codes

Billableusable codeNon-billableheader / grouping codeRisk-adjusting

Official Guidelines for O20-O29

FY 2026 ›