ICDcodes.org
FY2027

O30.831 — Other specified multiple gestation, number of chorions and amnions are both equal to the number of fetuses, first trimester

BillableUnspecifiedCC

Is O30.831 billable?

Yes, but O30.831 is an unspecified code. O30.831 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, O30.831 is an unspecified or catch-all code. Payers apply additional scrutiny to unspecified codes and many deny them when the medical record supports a more specific option, so check the documentation before selecting O30.831 — the more specific alternatives are listed below.

O30.831 at a glance

CodeO30.831
DescriptionOther specified multiple gestation, number of chorions and amnions are both equal to the number of fetuses, first trimester
BillableYes
Code setICD-10-CM FY2027
Valid for encountersOctober 1, 2026 – September 30, 2027

Which MS-DRGs does O30.831 group to?

O30.831 sits in MDC 14 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.

  • 817Other Antepartum Diagnoses with O.R. Procedures with MCCsurgical
  • 818Other Antepartum Diagnoses with O.R. Procedures with CCsurgical
  • 819Other Antepartum Diagnoses with O.R. Procedures without CC/MCCsurgical

As a secondary diagnosis, O30.831 is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.

How is O30.831 listed in the Alphabetic Index?

The Alphabetic Index lists these routes under O30.83, the nearest indexed parent of O30.831. Use them to find the family, then select the specific code.

  • Pregnancy › heptachorionic, hepta-amniotic (single) (uterine)
  • Pregnancy › hexachorionic, hexa-amniotic (single) (uterine)
  • Pregnancy › pentachorionic, penta-amniotic (single) (uterine)
  • Pregnancy › multiple › specified NEC › number of chorions and amnions are both equal to the number of fetuses (single) (uterine)

Excludes1 — never code together — inherited from Chapter 15

The conditions below can never be reported together with O30.831 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

  • supervision of normal pregnancy (Z34.-)

Use additional code — inherited from Chapter 15

Report an additional code alongside O30.831 to fully describe the condition. O30.831 is sequenced first.

  • code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.

Excludes2 — not included here — inherited from Chapter 15

The conditions below are not part of O30.831, but a patient may have both at the same time. When documentation supports it, O30.831 and the excluded code may both be reported.

  • mental and behavioral disorders associated with the puerperium (F53.-)
  • obstetrical tetanus (A34)
  • postpartum necrosis of pituitary gland (E23.0)
  • puerperal osteomalacia (M83.0)

Code also — inherited from O30

Two codes may be needed to describe the condition fully. Whether O30.831 is sequenced first depends on the reason for the encounter.

  • any complications specific to multiple gestation

How long has O30.831 existed?

O30.831 first appears in FY2019.

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.

What other codes are in the O30.83 family? (3)