Valid for Submission
R79.1 is a billable diagnosis code used to specify a medical diagnosis of abnormal coagulation profile. The code R79.1 is valid during the fiscal year 2021 from October 01, 2020 through September 30, 2021 for the submission of HIPAA-covered transactions.
The ICD-10-CM code R79.1 might also be used to specify conditions or terms like clotting time above reference range, coag./bleeding tests abnormal, d-dimer above reference range, deviation of international normalized ratio from target range, extrinsic coagulation pathway finding , hormone replacement therapy bleed pattern - abnormal, etc.
According to ICD-10-CM guidelines this code should not to be used as a principal diagnosis code when a related definitive diagnosis has been established.
Tabular List of Diseases and Injuries
The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code R79.1:
Inclusion TermsInclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
- Abnormal or prolonged bleeding time
- Abnormal or prolonged coagulation time
- Abnormal or prolonged partial thromboplastin time PTT
- Abnormal or prolonged prothrombin time PT
Type 1 ExcludesType 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
- coagulation defects D68
Type 2 ExcludesType 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
Index to Diseases and Injuries
The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code R79.1 are found in the index:
- - Abnormal, abnormality, abnormalities - See Also: Anomaly;
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Clotting time above reference range
- Coag./bleeding tests abnormal
- D-dimer above reference range
- Deviation of international normalized ratio from target range
- Extrinsic coagulation pathway finding
- Hormone replacement therapy bleed pattern - abnormal
- INR - international normal ratio abnormal
- INR raised
- Intrinsic coagulation pathway finding
- Menopause monitoring status
- Partial thromboplastin time finding
- Partial thromboplastin time increased
- Prothrombin time abnormal
- Prothrombin time finding
- Prothrombin time increased
- Prothrombin time low
- Thrombin time abnormal
Diagnostic Related Groups - MS-DRG Mapping
Convert R79.1 to ICD-9 Code
Information for Patients
Your blood is made up of liquid and solids. The liquid part, called plasma, is made of water, salts, and protein. Over half of your blood is plasma. The solid part of your blood contains red blood cells, white blood cells, and platelets.
Red blood cells (RBC) deliver oxygen from your lungs to your tissues and organs. White blood cells (WBC) fight infection and are part of your immune system. Platelets help blood to clot when you have a cut or wound. Bone marrow, the spongy material inside your bones, makes new blood cells. Blood cells constantly die and your body makes new ones. Red blood cells live about 120 days, and platelets live about 6 days. Some white blood cells live less than a day, but others live much longer.
There are four blood types: A, B, AB, or O. Also, blood is either Rh-positive or Rh-negative. So if you have type A blood, it's either A positive or A negative. Which type you are is important if you need a blood transfusion. And your Rh factor could be important if you become pregnant - an incompatibility between your type and the baby's could create problems.
Blood tests such as blood count tests help doctors check for certain diseases and conditions. They also help check the function of your organs and show how well treatments are working. Problems with your blood may include bleeding disorders, excessive clotting and platelet disorders. If you lose too much blood, you may need a transfusion.
NIH: National Heart, Lung, and Blood Institute