Skip to main content

O00.31 ICD-10-CM Code: Cesarean scar ectopic pregnancy without intrauterine pregnancy

Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.

Code Set: New for FY2027 — not valid before October 1, 2026.

Official Registry Overview & Definition

No additional overview provided for this record.

Official Tabular Instructional Notes

Sequencing, inclusion, and exclusion notes published for O00.31 in the official ICD-10-CM tabular list.

Includes

Conditions the official ICD-10-CM tabular list includes under this code.

  • ruptured ectopic pregnancy

Excludes1 — Not Coded Here

Conditions generally not reported together with this code (Excludes1) -- an error unless the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).

Use Additional Code

Supplementary codes the tabular list directs you to add.

  • Use additional code from category O08 to identify any associated complication

Indexed Clinical Terms (1)

Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.

  • Pregnancy (single) (uterine), ectopic (ruptured), Cesarean scar

Frequently Compared Codes

The official Excludes notes on O00.31 name these codes. Each comparison page covers when the two can — or must not — be reported together.

Change history

  • FY2027 — 2026-10-01
    Added to the code set
    Cesarean scar ectopic pregnancy without intrauterine pregnancy
    FY2027 changes

Verify Before Coding

  • No Medicare Code Editor or MS-DRG Definitions Manual restrictions apply to this code.

From the code registry, the Medicare Code Editor, and the MS-DRG Definitions Manual. Check it against a full claim.

Relationships & Classification

Official ICD-10-CM tabular notes on other codes that name O00.31 or its code family.

22 Excludes1 notes across 7 chapters: G08 (via O00.-), K65 (via O00.-), N70 (via O00.-), N70-N77 (via O00.-), N71 (via O00.-), N72 (via O00.-), N73 (via O00.-), N74 (via O00.-), N75 (via O00.-), N76 (via O00.-) and 12 more.

28 Excludes2 notes across 5 chapters: D65 (via O00.-), D68 (via O00.-), I26 (via O00.-), K72 (via O00.-), N17 (via O00.-), N17-N19 (via O00.-), N18 (via O00.-), N19 (via O00.-), N30 (via O00.-), N30-N39 (via O00.-) and 18 more.

6 Code First instructions: I47 (via O00.-), I49 (via O00.-), I50 (via O00.-), I74 (via O00.-), I80 (via O00.-), I82 (via O00.-).

Contextual Map

Every relationship of O00.31 in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.

Hierarchy

  • O00-O9A — Chapter 15: Pregnancy, Childbirth and the Puerperium (O00-O9A) (O00-O9A) [Hierarchy]
  • O00-O08 — Pregnancy with abortive outcome [Hierarchy]

Referenced by Excludes1 notes (22)

  • G08 — Intracranial and intraspinal phlebitis and thrombophlebitis [Excludes1](via O00.-): “abortion, ectopic or molar pregnancy (O00-O07, O08.7)” · check together
  • K65 — Peritonitis [Excludes1](via O00.-): “peritonitis with or following abortion or ectopic or molar pregnancy (O00-O07, O08.0)” · check together
  • N70 — Salpingitis and oophoritis [Excludes1](via O00.-): “abortion or ectopic or molar pregnancy (O00-O07, O08.0)” · check together
  • N70-N77 — Inflammatory diseases of female pelvic organs (N70-N77) [Excludes1](via O00.-): “abortion or ectopic or molar pregnancy (O00-O07, O08.0)” · check together
  • N71 — Inflammatory disease of uterus, except cervix [Excludes1](via O00.-): “abortion or ectopic or molar pregnancy (O00-O07, O08.0)” · check together
  • N72 — Inflammatory disease of cervix uteri [Excludes1](via O00.-): “abortion or ectopic or molar pregnancy (O00-O07, O08.0)” · check together
  • N73 — Other female pelvic inflammatory diseases [Excludes1](via O00.-): “abortion or ectopic or molar pregnancy (O00-O07, O08.0)” · check together
  • N74 — Female pelvic inflammatory disorders in diseases classified elsewhere [Excludes1](via O00.-): “abortion or ectopic or molar pregnancy (O00-O07, O08.0)” · check together
  • and 14 more

Referenced by Excludes2 notes (28)

  • D65 — Disseminated intravascular coagulation [defibrination syndrome] [Excludes2](via O00.-): “abortion or ectopic or molar pregnancy (O00-O07, O08.1)” · check together
  • D68 — Other coagulation defects [Excludes2](via O00.-): “coagulation defects complicating abortion or ectopic or molar pregnancy (O00-O07, O08.1)” · check together
  • I26 — Pulmonary embolism [Excludes2](via O00.-): “pulmonary embolism complicating abortion, ectopic or molar pregnancy (O00-O07, O08.2)” · check together
  • K72 — Hepatic failure, not elsewhere classified [Excludes2](via O00.-): “hepatic failure complicating abortion or ectopic or molar pregnancy (O00-O07, O08.8)” · check together
  • N17 — Acute kidney failure [Excludes2](via O00.-): “renal failure complicating abortion or ectopic or molar pregnancy (O00-O07, O08.4)” · check together
  • N17-N19 — Acute kidney failure and chronic kidney disease (N17-N19) [Excludes2](via O00.-): “renal failure complicating abortion or ectopic or molar pregnancy (O00-O07, O08.4)” · check together
  • N18 — Chronic kidney disease (CKD) [Excludes2](via O00.-): “renal failure complicating abortion or ectopic or molar pregnancy (O00-O07, O08.4)” · check together
  • N19 — Unspecified kidney failure [Excludes2](via O00.-): “renal failure complicating abortion or ectopic or molar pregnancy (O00-O07, O08.4)” · check together
  • and 20 more

Referenced by Code First instructions

  • I47 — Paroxysmal tachycardia [Code First](via O00.-): “abortion or ectopic or molar pregnancy (O00-O07, O08.8)” · check together
  • I49 — Other cardiac arrhythmias [Code First](via O00.-): “abortion or ectopic or molar pregnancy (O00-O07, O08.8)” · check together
  • I50 — Heart failure [Code First](via O00.-): “heart failure complicating abortion or ectopic or molar pregnancy (O00-O07, O08.8)” · check together
  • I74 — Arterial embolism and thrombosis [Code First](via O00.-): “embolism and thrombosis complicating abortion or ectopic or molar pregnancy (O00-O07, O08.2)” · check together
  • I80 — Phlebitis and thrombophlebitis [Code First](via O00.-): “, if applicable: phlebitis and thrombophlebitis complicating abortion, ectopic or molar pregnancy (O00-O07, O08.7)” · check together
  • I82 — Other venous embolism and thrombosis [Code First](via O00.-): “abortion, ectopic or molar pregnancy (O00-O07, O08.7)” · check together

Index entries

  • Pregnancy (single) (uterine), ectopic (ruptured), Cesarean scar[Index term]

Nearest codes (40)

  • O00 — Ectopic pregnancy [Sibling]
  • O00.111 — Right tubal pregnancy with intrauterine pregnancy [Sibling]
  • O00.112 — Left tubal pregnancy with intrauterine pregnancy [Sibling]
  • O00.119 — Unspecified tubal pregnancy with intrauterine pregnancy [Sibling]
  • O00.12 — Interstitial ectopic pregnancy without intrauterine pregnancy [Sibling]
  • O00.121 — Right interstitial ectopic pregnancy without intrauterine pregnancy [Sibling]
  • O00.122 — Left interstitial ectopic pregnancy without intrauterine pregnancy [Sibling]
  • O00.129 — Unspecified interstitial ectopic pregnancy without intrauterine pregnancy [Sibling]
  • and 32 more

Change history

  • FY2027 — Added to the code set [Change history]

Nearest Codes in This Family

Official ICD-10-CM classifications closest to O00.31 in its code family, with their registry titles.

  • O00.21 — Ovarian pregnancy with intrauterine pregnancy
  • O00.211 — Right ovarian pregnancy with intrauterine pregnancy
  • O00.212 — Left ovarian pregnancy with intrauterine pregnancy
  • O00.219 — Unspecified ovarian pregnancy with intrauterine pregnancy
  • O00.3 — Cesarean scar ectopic pregnancy
  • O00.32 — Cesarean scar ectopic pregnancy with intrauterine pregnancy
  • O00.4 — Cervical ectopic pregnancy
  • O00.41 — Cervical ectopic pregnancy without intrauterine pregnancy
  • O00.42 — Cervical ectopic pregnancy with intrauterine pregnancy
  • O00.5 — Cornual ectopic pregnancy

View all codes in the O00 family