Wiki Pre Diabetes

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Code: R73.03

Code Name: ICD-10 Code for Prediabetes

Block: Abnormal findings on examination of blood, without diagnosis (R70-R79)

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

Details: Prediabetes

Latent diabetes


Excludes1: abnormal glucose in pregnancy (O99.81-)
diabetes mellitus (E08-E13)
dysmetabolic syndrome X (E88.81)
gestational diabetes (O24.4-)
glycosuria (R81)
hypoglycemia (E16.2)


Excludes1: diabetes mellitus (E08-E13)
diabetes mellitus in pregnancy, childbirth and the puerperium (O24.-)
neonatal disorders (P70.0-P70.2)
postsurgical hypoinsulinemia (E89.1)

Guidelines: Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)

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.
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.
The conditions and signs or symptoms included in categories R00-R94 consist of:
(a) cases for which no more specific diagnosis can be made even after all the facts bearing on the case have been investigated;
(b) signs or symptoms existing at the time of initial encounter that proved to be transient and whose causes could not be determined;
(c) provisional diagnosis in a patient who failed to return for further investigation or care;
(d) cases referred elsewhere for investigation or treatment before the diagnosis was made;
(e) cases in which a more precise diagnosis was not available for any other reason;
(f) certain symptoms, for which supplementary information is provided, that represent important problems in medical care in their own right.

Excludes 2: 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)

For more details on R73.03 , ICD-10 Code for Prediabetes , visit:
Best answers
Hello, I am new to coding in an outpatient setting. I have a patient with an A1c of 6.1 which comes back as pre diabetes. The doctor is wanting to code this as actual diabetes with 250.00. Is this acceptable since the A1c shows pre diabetes?


Flagstaff, AZ
Best answers
hello. I would assign 790.29 (abnormal glucose), since the doc did not document that the patient has Diabetes of any type. hope that helps. This should also be a covered dx under Medicare I believe.


True Blue
Columbia, MO
Best answers
Once upon a time when you look in the alpha listing look for the term pre diabetes, it use to be there but I am without a book at the moment, then it leads you to abnormal glucose.
this is from
790.29 Alternative Terminology
Applies To

Abnormal glucose NOS
Abnormal non-fasting glucose
Hyperglycemia NOS
Pre-diabetes NOS

Also I believe if you go to the tabular listing you will see this information in the book