ICD-9 Code 790.99

Other nonspecific findings on examination of blood

Not Valid for Submission

790.99 is a legacy non-billable code used to specify a medical diagnosis of other nonspecific findings on examination of blood. This code was replaced on September 30, 2015 by its ICD-10 equivalent.

ICD-9: 790.99
Short Description:Oth nspcf finding blood
Long Description:Other nonspecific findings on examination of blood

Convert 790.99 to ICD-10

The following crosswalk between ICD-9 to ICD-10 is based based on the General Equivalence Mappings (GEMS) information:

  • R78.89 - Finding of oth substances, not normally found in blood
  • R78.9 - Finding of unsp substance, not normally found in blood

Code Classification

  • Symptoms, signs, and ill-defined conditions (780–799)
    • Nonspecific abnormal findings (790-796)
      • 790 Nonspecific findings on examination of blood

Information for Medical Professionals


  • Abnormal hematologic finding on antenatal screening of mother
  • Abnormal plasma viscosity
  • Abnormal structure of albumin
  • Abnormal structure of alpha-fetoprotein
  • Abnormal structure of globulin
  • Abnormally increased cellular element of blood
  • Acidified serum test positive
  • Anti-D screening positive
  • Bacterial colony hemolysis, alpha prime
  • Basophil count abnormal
  • Blood incompatible
  • Blood pH abnormal
  • Bone marrow: lymphocytes
  • Bone marrow: myeloid cells OK
  • Bone marrow: myeloma cells
  • Bone marrow: tumor cells
  • Burr cells present
  • Decreased osmotic fragility
  • Decreased serum protein level
  • Deviation of international normalized ratio from target range
  • Differential white count abnormal
  • Direct Coombs test positive
  • Drug resistance to insulin
  • Erythrocyte sedimentation rate abnormal
  • Finding of alcohol in blood
  • Finding of bone marrow erythropoiesis
  • Finding of bone marrow myeloid cells
  • Finding of bone marrow: foreign cells
  • Finding of steroid agent in blood
  • Full blood count abnormal
  • Horse erythrocyte antigen test positive
  • Increased osmotic fragility
  • Increased sulfhemoglobin
  • Indirect Coombs test positive
  • Ineffective granulopoiesis
  • International Normalized Ratio raised
  • Kleihauer test abnormal
  • Lewis antibodies present
  • Lipids abnormal
  • Lipoprotein electrophoresis abnormal
  • Lymphocyte count abnormal
  • Methemalbuminemia
  • Monoclonal abnormal heavy chain protein devoid of light chains present
  • Monoclonal alpha heavy chain present
  • Monoclonal band present
  • Monoclonal free kappa light chain present
  • Monoclonal free lambda light chain present
  • Monoclonal free light chain present
  • Monoclonal gamma heavy chain present
  • Monoclonal immunoglobulin A present
  • Monoclonal immunoglobulin D present
  • Monoclonal immunoglobulin E present
  • Monoclonal immunoglobulin G present
  • Monoclonal immunoglobulin M present
  • Monoclonal mu heavy chain present
  • Monocyte count abnormal
  • Morulae in leukocyte
  • Myelocytes in blood
  • Neutrophil count abnormal
  • On examination - blood fails to clot
  • On examination - blood looks deep yellow
  • On examination - blood looks pale
  • On examination - fat globules in blood
  • On examination - retraction of blood clot
  • Opiate agonist in blood specimen positive
  • Parasite on microscopy
  • Phenylalanine: serum
  • Platelet clumps
  • Platelet count above reference range
  • Platelet count below reference range
  • Protein electrophoresis abnormal
  • Reticulcytosis after B12
  • Reticulocytopenia
  • Reticulocytosis
  • Sensitized cell
  • Serology: false positive
  • Serum amino acids abnormal
  • Serum creatinine abnormal
  • Serum monoclonal band present
  • Serum phosphate level abnormal
  • Serum total protein abnormal
  • Sugar-water test positive
  • White blood cell count abnormal

Index to Diseases and Injuries

References found for the code 790.99 in the Index of Diseases and Injuries:

Information for Patients


Your blood is living tissue 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 deliver oxygen from your lungs to your tissues and organs. White blood cells fight infection and are part of your body's defense 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.

Problems with your blood may include bleeding disorders, excessive clotting and platelet disorders. If you lose too much blood, you may need a transfusion.

  • Blood differential
  • Blood smear
  • CBC
  • Hematocrit
  • Hemoglobin
  • Platelet count
  • RBC count
  • RBC indices
  • Serum free hemoglobin test
  • WBC count

[Read More]

Blood Disorders

Also called: Hematologic diseases

Your blood is living tissue 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.

Blood disorders affect one or more parts of the blood and prevent your blood from doing its job. They can be acute or chronic. Many blood disorders are inherited. Other causes include other diseases, side effects of medicines, and a lack of certain nutrients in your diet.

Types of blood disorders include

  • Platelet disorders, excessive clotting, and bleeding problems, which affect how your blood clots
  • Anemia, which happens when your blood does not carry enough oxygen to the rest of your body
  • Cancers of the blood, such as leukemia and myeloma
  • Eosinophilic disorders, which are problems with one type of white blood cell.
  • Blood differential
  • Blood smear
  • CBC
  • Hematocrit
  • Hemoglobin
  • Hemoglobin electrophoresis
  • Hemolytic disease of the newborn
  • Hyperviscosity - newborn
  • Low white blood cell count and cancer
  • Neutropenia - infants
  • RBC count
  • RBC indices
  • Serum free hemoglobin test
  • WBC count

[Read More]

ICD-9 Footnotes

General Equivalence Map Definitions
The ICD-9 and ICD-10 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

  • Approximate Flag - The approximate flag is on, indicating that the relationship between the code in the source system and the code in the target system is an approximate equivalent.
  • No Map Flag - The no map flag indicates that a code in the source system is not linked to any code in the target system.
  • Combination Flag - The combination flag indicates that more than one code in the target system is required to satisfy the full equivalent meaning of a code in the source system.

Index of Diseases and Injuries Definitions

  • And - The word "and" should be interpreted to mean either "and" or "or" when it appears in a title.
  • Code also note - A "code also" note instructs that two codes may be required to fully describe a condition, but this note does not provide sequencing direction.
  • Code first - Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists, there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation.
  • Type 1 Excludes Notes - 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.
  • Type 2 Excludes Notes - 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.
  • Includes Notes - This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
  • Inclusion terms - List of terms is included under some codes. 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.
  • NEC "Not elsewhere classifiable" - This abbreviation in the Alphabetic Index represents "other specified". When a specific code is not available for a condition, the Alphabetic Index directs the coder to the "other specified” code in the Tabular List.
  • NOS "Not otherwise specified" - This abbreviation is the equivalent of unspecified.
  • See - The "see" instruction following a main term in the Alphabetic Index indicates that another term should be referenced. It is necessary to go to the main term referenced with the "see" note to locate the correct code.
  • See Also - A "see also" instruction following a main term in the Alphabetic Index instructs that there is another main term that may also be referenced that may provide additional Alphabetic Index entries that may be useful. It is not necessary to follow the "see also" note when the original main term provides the necessary code.
  • 7th Characters - Certain ICD-10-CM categories have applicable 7th characters. The applicable 7th character is required for all codes within the category, or as the notes in the Tabular List instruct. The 7th character must always be the 7th character in the data field. If a code that requires a 7th character is not 6 characters, a placeholder X must be used to fill in the empty characters.
  • With - The word "with" should be interpreted to mean "associated with" or "due to" when it appears in a code title, the Alphabetic Index, or an instructional note in the Tabular List. The word "with" in the Alphabetic Index is sequenced immediately following the main term, not in alphabetical order.