ICD10BillableValid for clinical use

ICD-10 Code O31.8X2: Other complications specific to multiple gestation, second trimester

O31.8X2 is a billable ICD-10 diagnosis code used to classify Other complications specific to multiple gestation, second trimester in medical records and claims. You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records. ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Pregnancy, childbirth and the puerperium (O00-O9A).

Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026

What is this code?

ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Pregnancy, childbirth and the puerperium (O00-O9A).

When is it used?

  • May be used when a clinician documents other complications specific to multiple gestation, second trimester in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code can be used as a clinically usable diagnosis entry in standardized coding workflows.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.

Code hierarchy

chapter
15Pregnancy, childbirth and the puerperium (O00-O9A)
block
O30-O48Maternal care related to the fetus and amniotic cavity and possible delivery problems
category
O31Complications specific to multiple gestation
category
O31.8Other complications specific to multiple gestation
category
O31.8XOther complications specific to multiple gestation
currentO31.8X

Where you may see this code

You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.

Related specialists

ObstetricianGynecologist

Coding guidelines

Common synonyms

Other complications specific to multiple gestation, second trimester

Frequently asked questions

Code details

CodeO31.8X2
SystemICD10
Display nameOther complications specific to multiple gestation, second trimester
ChapterPregnancy, childbirth and the puerperium (O00-O9A)
BlockMaternal care related to the fetus and amniotic cavity and possible delivery problems

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.

ICD-10 Code O31.8X2 for Other complications specific to multiple gestation, second trimester | HealthAssure