U.S. ICD-10-CM reference · FY2027
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O98Category · further specificity requiredCurrent

Maternal infectious and parasitic diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium

HierarchyO94-O9A · O98

Code-level instructions

Includes

the listed conditions when complicating the pregnant state, when aggravated by the pregnancy, or as a reason for obstetric care

Excludes 2
  • herpes gestationis (O26.4-)
  • infectious carrier state (O99.82-, O99.83-)
  • obstetrical tetanus (A34)
  • puerperal infection (O86.-)
  • puerperal sepsis (O85)
  • when the reason for maternal care is that the disease is known or suspected to have affected the fetus (O35-O36)
Use additional code

code (Chapter 1), to identify specific infectious or parasitic disease

Inherited instructions

Chapters 15 · Pregnancy, childbirth and the puerperium (O00-O9A)

Excludes 1

supervision of normal pregnancy (Z34.-)

Excludes 2
  • 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.

Note
  • CODES FROM THIS CHAPTER ARE FOR USE ONLY ON MATERNAL RECORDS, NEVER ON NEWBORN RECORDS
  • Codes from this chapter are for use for conditions related to or aggravated by the pregnancy, childbirth, or by the puerperium (maternal causes or obstetric causes)
  • Trimesters are counted from the first day of the last menstrual period. They are defined as follows:
  • 1st trimester- less than 14 weeks 0 days
  • 2nd trimester- 14 weeks 0 days to less than 28 weeks 0 days
  • 3rd trimester- 28 weeks 0 days until delivery

More specific codes

O98.0Tuberculosis complicating pregnancy, childbirth and the puerperiumCategory · further specificity requiredO98.1Syphilis complicating pregnancy, childbirth and the puerperiumCategory · further specificity requiredO98.2Gonorrhea complicating pregnancy, childbirth and the puerperiumCategory · further specificity requiredO98.3Other infections with a predominantly sexual mode of transmission complicating pregnancy, childbirth and the puerperiumCategory · further specificity requiredO98.4Viral hepatitis complicating pregnancy, childbirth and the puerperiumCategory · further specificity requiredO98.5Other viral diseases complicating pregnancy, childbirth and the puerperiumCategory · further specificity requiredO98.6Protozoal diseases complicating pregnancy, childbirth and the puerperiumCategory · further specificity requiredO98.7Human immunodeficiency virus [HIV] disease complicating pregnancy, childbirth and the puerperiumCategory · further specificity requiredO98.8Other maternal infectious and parasitic diseases complicating pregnancy, childbirth and the puerperiumCategory · further specificity requiredO98.9Unspecified maternal infectious and parasitic disease complicating pregnancy, childbirth and the puerperiumCategory · further specificity required
Code edition