S72.90XH Unspecified fracture of unspecified femur, subsequent encounter for open fracture type I or II with delayed healing

ICD-10-CM S72.90XH: Unspecified fracture of unspecified femur, subsequent encounter for open fracture type I or II with delayed healing

ICD-10-CM code S72.90XH represents an unspecified fracture of an unspecified femur during a subsequent encounter for an open fracture type I or II with delayed healing. The designation is explicitly listed in official and coding sources. Clinical literature provides context on delayed healing and infection risks for type I and II open fractures, but does not provide specific coding rules for this code. 3 4 1 2

Plain-language overview

Code S72.90XH is labeled as an unspecified fracture of an unspecified femur for a subsequent encounter for open fracture type I or II with delayed healing. This label is explicitly confirmed by both official terminology and coding reference sources. 3 4

What this code represents

The official label for S72.90XH explicitly includes the phrase "subsequent encounter for open fracture type I or II with delayed healing". The provided sources do not further define how the seventh character differentiates this specific encounter from initial or routine healing phases. 3 4

Documentation considerations

Clinical literature defines nonunion as a failure of the fracture to heal or a lack of signs of healing for six months. The provided sources do not explicitly state whether this definition of nonunion directly applies to the delayed healing terminology used in the S72.90XH code label. 1

Clinical context

Clinical literature reports infection rates for type I and II open fractures ranging from 0 to 10 percent. The same source documents a higher infection rate of 17.6 percent for GA type III open fractures, establishing a comparative difference in infection risk between the fracture types. 1 2

Clinical literature identifies thermal necrosis secondary to reaming as a factor that can potentially lead to delayed fracture healing. This provides a documented clinical mechanism for delayed healing in femur fractures, which is a component of the S72.90XH code label. 1

What the sources add

The official terminology source provides the exact code and label for S72.90XH, while the clinical literature provides context on delayed healing mechanisms and infection rates. The provided sources do not explicitly state whether the clinical sources omit coding rules or the coding sources omit clinical treatment details. 3 1 2

Coverage and utilization context

The provided sources establish the code label and clinical context for S72.90XH but do not explicitly state that a diagnosis code designation does not imply guaranteed coverage. The sources do not provide information regarding payer-specific coverage policies for this encounter. 3 4

Questions to verify

The provided sources do not explicitly state the coding rule that one must verify clinical documentation to accurately apply S72.90XH. Verification is needed to determine what specific clinical documentation elements are required to validate the seventh character for delayed healing. 3 4

Sources

1. Bookshelf — ncbi.nlm.nih.gov; accessed 2026-07-25.
2. Treatment principles in the management of open fractures — pmc.ncbi.nlm.nih.gov; accessed 2026-07-25.
3. EVS Explore — evsexplore.semantics.cancer.gov; accessed 2026-07-25.
4. Codigo. The #1 Billing Agency for Medical Practices — codigo.care; accessed 2026-07-25.