O31.8X2Header code — not billable
Other complications specific to multiple gestation, second trimester
Short description: Oth comp specific to multiple gestation, second trimester
- Chapter
- 15. Pregnancy, childbirth and the puerperium
- Category
- O31
- Effective date
- October 1, 2026
Related codes in category O31
O31Complications specific to multiple gestationO31.0Papyraceous fetusO31.00Papyraceous fetus, unspecified trimesterO31.00X0Papyraceous fetus, unsp trimester, not applicable or unspYesO31.00X1Papyraceous fetus, unspecified trimester, fetus 1YesO31.00X2Papyraceous fetus, unspecified trimester, fetus 2YesO31.00X3Papyraceous fetus, unspecified trimester, fetus 3YesO31.00X4Papyraceous fetus, unspecified trimester, fetus 4YesO31.00X5Papyraceous fetus, unspecified trimester, fetus 5YesO31.00X9Papyraceous fetus, unspecified trimester, other fetusYesO31.01Papyraceous fetus, first trimesterO31.01X0Papyraceous fetus, first trimester, not applicable or unspYes
Frequently asked questions
What is ICD-10 code O31.8X2?
O31.8X2 is an ICD-10-CM diagnosis code for Other complications specific to multiple gestation, second trimester.
Is O31.8X2 a billable code?
No. O31.8X2 is a category/header code, not billable on its own — use one of its more specific child codes instead.
What ICD-10-CM chapter is O31.8X2 in?
O31.8X2 falls under Chapter 15: Pregnancy, childbirth and the puerperium.
When did O31.8X2 become effective?
O31.8X2 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to O31.8X2?
O31.8X2 belongs to category O31, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.