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Q89.4

Billable

Conjoined twins

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

A rare condition where two fetuses develop physically connected to each other, sharing one or more body parts or organs.

Coding Tips

  • •Specify the type of conjoined twins if documented (thoracopagus, omphalopagus, etc.)
  • •Code any associated organ system abnormalities separately

Code Hierarchy

└Q89Other congenital malformations, not elsewhere classified└Q89.4Conjoined twins
└Q89.4Conjoined twins

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