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O99.43

O99.43: Diseases of the circulatory system complicating the puerperium

Billable / specific codeICD-10-CM

O99.43 is a billable, specific ICD-10-CM code for diseases of the circulatory system complicating the puerperium. It is valid for submission on a claim.

Check O99.43 with the rest of the claim: free scrubber

Excludes1 inherited from the categories above O99.43

A category’s note binds every code beneath it.

Written on O99.4: Diseases of the circulatory system complicating pregnancy, childbirth and the puerperium

  • peripartum cardiomyopathy (O90.3)

Excludes2 inherited from the categories above O99.43

Not part of this code, but both may be coded when both are present.

Written on O99.4: Diseases of the circulatory system complicating pregnancy, childbirth and the puerperium

  • hypertensive disorders (O10-O16)
  • obstetric embolism (O88.-)
  • venous complications and cerebrovenous sinus thrombosis in labor, childbirth and the puerperium (O87.-)
  • venous complications and cerebrovenous sinus thrombosis in pregnancy (O22.-)

Written on O99: Other maternal diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium

  • when the reason for maternal care is that the condition is known or suspected to have affected the fetus (O35-O36)

Risk adjustment

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

Medicare coverage

O99.43 is named in 1 Medicare coverage policy: 1 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A57326Billing and Coding: Electrocardiograms

Alphabetic index entries that lead here

  • Puerperal, puerperium›apoplexy
  • Puerperal, puerperium›cerebrovascular disorder(conditions in I60-I69)
  • Puerperal, puerperium›circulatory system disorder
  • Puerperal, puerperium›hematoma, subdural
  • Puerperal, puerperium›ischemia, cerebral
  • Puerperal, puerperium›monoplegia, cerebral
  • Puerperal, puerperium›occlusion, precerebral artery
  • Puerperal, puerperium›paralytic stroke
  • Puerperal, puerperium›stroke
  • Puerperal, puerperium›disease›cerebrovascular(acute)
  • Puerperal, puerperium›hemiplegia, cerebral›due to cerebrovascular disorder
  • Puerperal, puerperium›hemorrhage›brain

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under O99.4

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.