Other abnormal findings of blood chemistry
Non-billable header
R79 is a non-billable header code. Use one of the more specific codes below.
Inclusion terms
Includes
- Note: This chapter includes symptoms, signs, abnormal results of clinical or other investigative procedures, and ill-defined conditions regarding which no diagnosis classifiable elsewhere is recorded.
- Note: Signs and symptoms that point rather definitely to a given diagnosis have been assigned to a category in other chapters of the classification. In general, categories in this chapter include the less well-defined conditions and symptoms that, without the necessary study of the case to establish a final diagnosis, point perhaps equally to two or more diseases or to two or more systems of the body. Practically all categories in the chapter could be designated 'not otherwise specified', 'unknown etiology' or 'transient'. The Alphabetical Index should be consulted to determine which symptoms and signs are to be allocated here and which to other chapters. The residual subcategories, numbered .8, are generally provided for other relevant symptoms that cannot be allocated elsewhere in the classification.
- Note: The conditions and signs or symptoms included in categories R00-R94 consist of:
- Note: (a) cases for which no more specific diagnosis can be made even after all the facts bearing on the case have been investigated;
- Note: (b) signs or symptoms existing at the time of initial encounter that proved to be transient and whose causes could not be determined;
- Note: (c) provisional diagnosis in a patient who failed to return for further investigation or care;
- Note: (d) cases referred elsewhere for investigation or treatment before the diagnosis was made;
- Note: (e) cases in which a more precise diagnosis was not available for any other reason;
- Note: (f) certain symptoms, for which supplementary information is provided, that represent important problems in medical care in their own right.
Excludes1
Not coded here — never report together with this code.
- asymptomatic hyperuricemia (E79.0)
- hypoglycemia NOS (E16.2)
- neonatal hypoglycemia (P70.3-P70.4)
- specific findings indicating disorder of amino-acid metabolism (E70-E72)
- specific findings indicating disorder of carbohydrate metabolism (E73-E74)
- specific findings indicating disorder of lipid metabolism (E75.-)
Excludes2
Not included here — may be reported together when both conditions exist.
- abnormal findings on antenatal screening of mother (O28.-)
- certain conditions originating in the perinatal period (P04-P96)
- signs and symptoms classified in the body system chapters
- signs and symptoms of breast (N63, N64.5)
- 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)
- hyperglycemia NOS (R73.9)
Use additional code
Add a code to identify the following, if applicable.
- code to identify any retained foreign body, if applicable (Z18.-)
More specific codes R79
Related codes
- R70Elevated erythrocyte sedimentation rate and abnormality of plasma viscosityHeader
- R71Abnormality of red blood cellsHeader
- R73Elevated blood glucose levelHeader
- R74Abnormal serum enzyme levelsHeader
- R75Inconclusive laboratory evidence of human immunodeficiency virus [HIV]Billable
- R76Other abnormal immunological findings in serumHeader
- R77Other abnormalities of plasma proteinsHeader
- R78Findings of drugs and other substances, not normally found in bloodHeader