All ICD10 Codes

O66

Non-Billable
ChapterO00–O9A
Rankcategory
Official Description

Other obstructed labor

Use a more specific code (8 billable, 1 non-billable)
O66.0Obstructed labor due to shoulder dystociaO66.1Obstructed labor due to locked twinsO66.2Obstructed labor due to unusually large fetusO66.3Obstructed labor due to other abnormalities of fetusO66.4Failed trial of laborhas subcodesO66.5Attempted application of vacuum extractor and forcepsO66.6Obstructed labor due to other multiple fetusesO66.8Other specified obstructed laborO66.9Obstructed labor, unspecified
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 15: Pregnancy, Childbirth and the Puerperium (O00-O9A).

CH15 Parent Instructions

Excludes1(Not coded here. Use a different code.)
  • supervision of normal pregnancy (Z34.-)
Excludes2(Not included here. Code separately if applicable.)
  • mental and behavioral disorders associated with the puerperium (F53.-)
  • obstetrical tetanus (A34)
  • postpartum necrosis of pituitary gland (E23.0)
  • puerperal osteomalacia (M83.0)
Use Additional Code
  • code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.

Clinical Hierarchy

BillableHas subcodes
CH15Pregnancy, childbirth and the puerperium (O00-O9A)
O60-O77Complications of labor and delivery (O60-O77)
O66Other obstructed laborNot billable
O66.0Obstructed labor due to shoulder dystociaBillable
O66.1Obstructed labor due to locked twinsBillable
O66.2Obstructed labor due to unusually large fetusBillable
O66.3Obstructed labor due to other abnormalities of fetusBillable
O66.4Failed trial of laborSubcodes
O66.5Attempted application of vacuum extractor and forcepsBillable
O66.6Obstructed labor due to other multiple fetusesBillable
O66.8Other specified obstructed laborBillable
O66.9Obstructed labor, unspecifiedBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to O66:

chapterCH15
Pregnancy, childbirth and the puerperium (O00-O9A)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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