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The word word anomaly is is, by itself, ambiguous . It may mean: any abnormality including non-structural ones; malformation; both malformation and deformation. Concepts with the word anomaly must be evaluated for ambiguity.as it may mean either a structural or functional abnormality, depending on the body structure to which it is applied. Concepts using the term anomaly must be evaluated to determine whether it represents a structural or functional abnormality. Using the term "anomaly" in new concept FSNs is not allowed. The terms "structural abnormality" should be used when it is unclear whether the morphology results from malformation or deformation.
A deformityA deformation is a structural abnormality that is due to an extrinsic physical force. Newly created concepts representing a deformity should be considered disorders.
A malformation is a structural abnormality that results from intrinsically disordered development.
For example,
- Congenital anomaly of
<x - <body structure> is
definitely - currently modeled as a structural abnormality but is not the same as
congenital - Congenital malformation (structural abnormality due to intrinsically disordered development present at birth). Therefore, it can be regarded as having the more general meaning of structural abnormality present at birth.
When referring to a broad term to denote an intrinsic structural abnormality (e.g., Structural abnormality of fetal bladder) and plan to include 49755003 |Morphologically abnormal structure (morphologic abnormality)| in the model, use the pattern Malformation of fetal X or Congenital malformation of X.
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