O31.43 ICD-10-CM Code: Continuing pregnancy after vanishing twin syndrome of one fetus or more, third trimester
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Code definition
Official description
O31.43Continuing pregnancy after vanishing twin syndrome of one fetus or more, third trimester
ICD-10-CM diagnosis code · United States clinical modification
Classification
Where O31.43 sits
- 1
Chapter 15
Pregnancy, childbirth and the puerperium (O00-O9A)
- 2
Section
Maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48)
- 3
Category O31
Complications specific to multiple gestation
- 4
Subcategory O31.4
Continuing pregnancy after vanishing twin syndrome of one fetus or more
- 5
Code O31.43
Continuing pregnancy after vanishing twin syndrome of one fetus or more, third trimester
More specific choices
Codes under O31.43
O31.43 is a non-billable category. Choose the child code that best matches the documented diagnosis.
O31.43X0Continuing pregnancy after vanishing twin syndrome of one fetus or more, third trimester, not applicable or unspecified
O31.43X1Continuing pregnancy after vanishing twin syndrome of one fetus or more, third trimester, fetus 1
O31.43X2Continuing pregnancy after vanishing twin syndrome of one fetus or more, third trimester, fetus 2
O31.43X3Continuing pregnancy after vanishing twin syndrome of one fetus or more, third trimester, fetus 3
O31.43X4Continuing pregnancy after vanishing twin syndrome of one fetus or more, third trimester, fetus 4
O31.43X5Continuing pregnancy after vanishing twin syndrome of one fetus or more, third trimester, fetus 5
O31.43X9Continuing pregnancy after vanishing twin syndrome of one fetus or more, third trimester, other fetus
Documentation details
Notes for this code
Inclusion terms
No inclusion terms are listed for O31.43.
Code first
No “code first” instruction is listed for O31.43.
Use additional code
No “use additional code” instruction is listed for O31.43.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for O31.43.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for O31.43.
Transparency
Source and release
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Review the CDC/NCHS ICD-10-CM sourceCode-specific guidance
Frequently asked questions
What does ICD-10-CM code O31.43 mean?
O31.43 is the FY 2027 U.S. ICD-10-CM code for “Continuing pregnancy after vanishing twin syndrome of one fetus or more, third trimester.”
Is O31.43 a billable or specific ICD-10-CM code?
No. O31.43 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.
Where is O31.43 located in ICD-10-CM?
O31.43 is listed in Chapter 15, Pregnancy, childbirth and the puerperium (O00-O9A), within Maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48) (O30–O48), under category O31, Complications specific to multiple gestation and subcategory O31.4, Continuing pregnancy after vanishing twin syndrome of one fetus or more.
What coding notes are listed for O31.43?
No inclusion terms are listed for O31.43 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.
Keep exploring
Related O31.4 codes
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