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O66.0

O66.0: Obstructed labor due to shoulder dystocia

Billable / specific codeICD-10-CM

O66.0 is a billable, specific ICD-10-CM code for obstructed labor due to shoulder dystocia. It is valid for submission on a claim.

Check O66.0 with the rest of the claim: free scrubber

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Impacted shoulders

Other codes that can never be billed with O66.0

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • O64.4Obstructed labor due to shoulder presentation
  • O64.4XX0Obstructed labor due to shoulder presentation, not applicable or unspecified
  • O64.4XX1Obstructed labor due to shoulder presentation, fetus 1
  • O64.4XX2Obstructed labor due to shoulder presentation, fetus 2
  • O64.4XX3Obstructed labor due to shoulder presentation, fetus 3
  • O64.4XX4Obstructed labor due to shoulder presentation, fetus 4
  • O64.4XX5Obstructed labor due to shoulder presentation, fetus 5
  • O64.4XX9Obstructed labor due to shoulder presentation, other fetus

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Alphabetic index entries that lead here

  • Dystocia›shoulder(girdle)
  • Impaction, impacted›shoulder, causing obstructed labor
  • Dystocia›shoulder›causing obstructed labor
  • Delivery›complicated›by›obstructed labor›due to›impacted shoulders
  • Delivery›complicated›by›obstructed labor›due to›dystocia›shoulder

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under O66

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.