Chapter 15

O00–O9A: Pregnancy, Childbirth and the Puerperium

Pregnancy, Childbirth and the Puerperium diagnostic classification updated for 2026.

Chapter Instructions

Excludes1(Not coded here. Use a different code.)

supervision of normal pregnancy (Z34.-)

Excludes2(Not included here. Code separately if applicable.)

mental and behavioral disorders associated with the puerperium (F53.-)
obstetrical tetanus (A34)
postpartum necrosis of pituitary gland (E23.0)
puerperal osteomalacia (M83.0)

Use Additional Code

code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.

All Codes Billable Only

Internal Codes

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O98.22|
Gonorrhea complicating childbirth
O98.23|
Gonorrhea complicating the puerperium
O98.3|
Other infections with a predominantly sexual mode of transmission complicating pregnancy, childbirth and the puerperium
O98.31|
Other infections with a predominantly sexual mode of transmission complicating pregnancy
O98.311|
Other infections with a predominantly sexual mode of transmission complicating pregnancy, first trimester
O98.312|
Other infections with a predominantly sexual mode of transmission complicating pregnancy, second trimester
O98.313|
Other infections with a predominantly sexual mode of transmission complicating pregnancy, third trimester
O98.319|
Other infections with a predominantly sexual mode of transmission complicating pregnancy, unspecified trimester
O98.32|
Other infections with a predominantly sexual mode of transmission complicating childbirth
O98.33|
Other infections with a predominantly sexual mode of transmission complicating the puerperium
O98.4|
Viral hepatitis complicating pregnancy, childbirth and the puerperium
O98.41|
Viral hepatitis complicating pregnancy
O98.411|
Viral hepatitis complicating pregnancy, first trimester
O98.412|
Viral hepatitis complicating pregnancy, second trimester
O98.413|
Viral hepatitis complicating pregnancy, third trimester
O98.419|
Viral hepatitis complicating pregnancy, unspecified trimester
O98.42|
Viral hepatitis complicating childbirth
O98.43|
Viral hepatitis complicating the puerperium
O98.5|
Other viral diseases complicating pregnancy, childbirth and the puerperium
O98.51|
Other viral diseases complicating pregnancy
O98.511|
Other viral diseases complicating pregnancy, first trimester
O98.512|
Other viral diseases complicating pregnancy, second trimester
O98.513|
Other viral diseases complicating pregnancy, third trimester
O98.519|
Other viral diseases complicating pregnancy, unspecified trimester
O98.52|
Other viral diseases complicating childbirth
O98.53|
Other viral diseases complicating the puerperium
O98.6|
Protozoal diseases complicating pregnancy, childbirth and the puerperium
O98.61|
Protozoal diseases complicating pregnancy
O98.611|
Protozoal diseases complicating pregnancy, first trimester
O98.612|
Protozoal diseases complicating pregnancy, second trimester
O98.613|
Protozoal diseases complicating pregnancy, third trimester
O98.619|
Protozoal diseases complicating pregnancy, unspecified trimester
O98.62|
Protozoal diseases complicating childbirth
O98.63|
Protozoal diseases complicating the puerperium
O98.7|
Human immunodeficiency virus [HIV] disease complicating pregnancy, childbirth and the puerperium
O98.71|
Human immunodeficiency virus [HIV] disease complicating pregnancy
O98.711|
Human immunodeficiency virus [HIV] disease complicating pregnancy, first trimester
O98.712|
Human immunodeficiency virus [HIV] disease complicating pregnancy, second trimester
O98.713|
Human immunodeficiency virus [HIV] disease complicating pregnancy, third trimester
O98.719|
Human immunodeficiency virus [HIV] disease complicating pregnancy, unspecified trimester
O98.72|
Human immunodeficiency virus [HIV] disease complicating childbirth
O98.73|
Human immunodeficiency virus [HIV] disease complicating the puerperium
O98.8|
Other maternal infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium
O98.81|
Other maternal infectious and parasitic diseases complicating pregnancy
O98.811|
Other maternal infectious and parasitic diseases complicating pregnancy, first trimester
O98.812|
Other maternal infectious and parasitic diseases complicating pregnancy, second trimester
O98.813|
Other maternal infectious and parasitic diseases complicating pregnancy, third trimester
O98.819|
Other maternal infectious and parasitic diseases complicating pregnancy, unspecified trimester
O98.82|
Other maternal infectious and parasitic diseases complicating childbirth
O98.83|
Other maternal infectious and parasitic diseases complicating the puerperium

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