O98.312 – Other infections with a predominantly sexual mode of transmission complicating pregnancy, second trimester

ICD-10-CM 2027 diagnosis code · Other obstetric conditions, not elsewhere classified

Billable code

ICD-10-CM code O98.312
Code
O98.312 (claims format: O98312)
Description
Other infections with a predominantly sexual mode of transmission complicating pregnancy, second trimester
Short description
Oth infect w sexl mode of transmiss comp preg, second tri
Billable
Yes – valid for HIPAA-covered transactions
Valid for
Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter
15. Pregnancy, childbirth and the puerperium (O00-O9A)
Block
O94-O9A Other obstetric conditions, not elsewhere classified
Parent codes
O98 › O98.3 › O98.31

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

O98 – Maternal infectious and parasitic diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium

Includes:
  • the listed conditions when complicating the pregnant state, when aggravated by the pregnancy, or as a reason for obstetric care
Excludes2 (not included here):
  • 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

O98.3 – Other infections with a predominantly sexual mode of transmission complicating pregnancy, childbirth and the puerperium

Applicable to:

Related codes in O98.31

Frequently asked questions

What is ICD-10 code O98.312?

O98.312 is the ICD-10-CM code for other infections with a predominantly sexual mode of transmission complicating pregnancy, second trimester, in the block O94-O9A (Other obstetric conditions, not elsewhere classified).

Is O98.312 a billable code?

Yes. O98.312 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does O98.312 belong to?

It belongs to category O98 – Maternal infectious and parasitic diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.