Excludes2

  • abnormal findings on antenatal screening of mother (O28.-)
  • abnormalities of lipids (E78.-)
  • abnormalities of platelets and thrombocytes (D69.-)
  • abnormalities of white blood cells classified elsewhere (D70-D72)
  • coagulation hemorrhagic disorders (D65-D68)
  • diagnostic abnormal findings classified elsewhere - see Alphabetical Index
  • hemorrhagic and hematological disorders of newborn (P50-P61)
  1. R74 Abnormal serum enzyme levels

    1. R74.0 Nonspecific elevation of levels of transaminase and lactic acid dehydrogenase [LDH]

      1. R74.01 Elevation of levels of liver transaminase levels

        Inclusion term(s):

        • Elevation of levels of alanine transaminase (ALT)
        • Elevation of levels of aspartate transaminase (AST)
      2. R74.02 Elevation of levels of lactic acid dehydrogenase [LDH]

    2. R74.8 Abnormal levels of other serum enzymes

      Inclusion term(s):

      • Abnormal level of acid phosphatase
      • Abnormal level of alkaline phosphatase
      • Abnormal level of amylase
      • Abnormal level of lipase [triacylglycerol lipase]
    3. R74.9 Abnormal serum enzyme level, unspecified

Abbreviations used here:

NEC Not elsewhere classifiable
This abbreviation in the Tabular List represents “other specified”. When a specific code is not available for a condition, the Tabular List includes an NEC entry under a code to identify the code as the “other specified” code.

NOS Not otherwise specified
This abbreviation is the equivalent of unspecified.