O00-O9A
Pregnancy, childbirth and the puerperium
Chapter coding notes
supervision of normal pregnancy (Z34.-)
mental and behavioral disorders associated with the puerperium (F53.-) obstetrical tetanus (A34) postpartum necrosis of pituitary gland (E23.0) puerperal osteomalacia (M83.0)
code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.
Blocks in this chapter
O00-O08
Pregnancy with abortive outcome
O09
Supervision of high risk pregnancy
O10-O16
Edema, proteinuria and hypertensive disorders in pregnancy, childbirth and the puerperium
O20-O29
Other maternal disorders predominantly related to pregnancy
O30-O48
Maternal care related to the fetus and amniotic cavity and possible delivery problems
O60-O77
Complications of labor and delivery
O80-O82
Encounter for delivery
O85-O92
Complications predominantly related to the puerperium
O94-O9A
Other obstetric conditions, not elsewhere classified
Official Guidelines for Chapter 15
FY 2026 ›Subsections
- I.C.15.aGeneral Rules for Obstetric Cases
- I.C.15.bSelection of OB Principal or First-listed Diagnosis
- I.C.15.cPre-existing conditions versus conditions due to the pregnancy
- I.C.15.dPre-existing hypertension in pregnancy
- I.C.15.eFetal Conditions Affecting the Management of the Mother
- I.C.15.fHIV Infection in Pregnancy, Childbirth and the Puerperium
- I.C.15.gDiabetes mellitus in pregnancy
- I.C.15.hLong term use of insulin and oral hypoglycemics
- I.C.15.iGestational (pregnancy induced) diabetes
- I.C.15.jSepsis and septic shock complicating abortion, pregnancy, childbirth and the puerperium
- I.C.15.kPuerperal sepsis
- I.C.15.lAlcohol, tobacco and drug use during pregnancy, childbirth and the puerperium
- I.C.15.mPoisoning, toxic effects, adverse effects and underdosing in a pregnant patient
- I.C.15.nNormal Delivery, Code O80
- I.C.15.oThe Peripartum and Postpartum Periods
- I.C.15.pCode O94, Sequelae of complication of pregnancy, childbirth, and the puerperium
- I.C.15.qTermination of Pregnancy and Spontaneous abortions
- I.C.15.rAbuse in a pregnant patient
- I.C.15.sCOVID-19 infection in pregnancy, childbirth, and the puerperium
Sections that reference codes in Chapter 15
- I.C.1.a.2)(h)HIV Infection in Pregnancy, Childbirth and the PuerperiumO98.7Chapter 1 guidance
- I.C.1.d.5)(b)Sepsis due to a postprocedural infectionO86.00Chapter 1 guidance
- I.C.2.l.3)Malignant neoplasm in a pregnant patientO9A.1Chapter 2 guidance
- I.C.4.bObesityO99.21Chapter 4 guidance
- I.C.9.a.7)Hypertension, TransientO13Chapter 9 guidance
- I.C.15.a.1)Codes from chapter 15 and sequencing priorityO00- O9A
- I.C.15.a.5)Unspecified trimesterO31
- I.C.15.b.2)Supervision of High-Risk PregnancyO09
Showing 8 of 32 sections that reference this range. Browse all FY 2026 guidelines.