O31.21X5
✓ Billable
Continuing pregnancy after intrauterine death of one fetus or more, first trimester, fetus 5
ICD-10-CM · FY2026 · Pregnancy, Childbirth and the Puerperium
Code
O31.21X5
System
ICD-10-CM
Billable
Yes — valid for submission
Effective
FY2026
Chapter
Pregnancy, Childbirth and the Puerperium
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code O31.21X5?
ICD-10-CM code O31.21X5 represents Continuing pregnancy after intrauterine death of one fetus or more, first trimester, fetus 5. It is a billable diagnosis code in the Pregnancy, Childbirth and the Puerperium chapter, effective October 1, 2025 – September 30, 2026.
Is O31.21X5 billable?
Yes. O31.21X5 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is O31.21X5 in?
O31.21X5 belongs to the Pregnancy, Childbirth and the Puerperium chapter (O00–O9A) of ICD-10-CM.
Related codes in the O31 category
O31
Complications specific to multiple gestation
Non-billable
O31.0
Papyraceous fetus
Non-billable
O31.1
Continuing pregnancy after spontaneous abortion of one fetus or more
Non-billable
O31.2
Continuing pregnancy after intrauterine death of one fetus or more
Non-billable
O31.3
Continuing pregnancy after elective fetal reduction of one fetus or more
Non-billable
O31.8
Other complications specific to multiple gestation
Non-billable
O31.00
Papyraceous fetus, unspecified trimester
Non-billable
O31.01
Papyraceous fetus, first trimester
Non-billable
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