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  2. ICD-10-CM Codes List
  3. D50–D89
  4. D60-D64
  5. Anemia in chronic diseases classified elsewhere (D63)

Anemia in chronic diseases classified elsewhere (D63)

The ICD-10 code D63 and its subcodes are used to classify anemia that occurs as a result of chronic diseases found elsewhere in a patient’s medical record. These codes specifically cover anemia linked to underlying health conditions, rather than anemia as a primary disorder.

For example, D63.0 refers to anemia caused by neoplastic diseases, such as anemia in ovarian carcinoma or hemolytic anemia related to malignant tumors. The code D63.1 is used for anemia associated with chronic kidney disease, including cases requiring erythropoietin treatment or linked to various stages of renal failure. Meanwhile, D63.8 covers anemia resulting from other chronic illnesses like endocrine disorders (thyroid, adrenal, pituitary dysfunction), metabolic disorders, AIDS, or chronic infections. These synonyms help medical coders accurately select the correct ICD-10 code for conditions like "anemia of chronic disease," "anemia secondary to renal failure," or "anemia of endocrine disorder." Understanding these distinctions is essential when assigning the ICD-10 code for anemia in chronic diseases, ensuring precise documentation and coding tailored to the patient’s underlying condition.

Clinical Terms

The following clinical terms provide additional context, helping users better understand the clinical background and common associations for each diagnosis listed in this section. Including related terms alongside ICD-10-CM codes supports coders, billers, and healthcare professionals in improving accuracy, enhancing documentation, and facilitating research or patient education.

Drug Resistance

Diminished or failed response of an organism, disease or tissue to the intended effectiveness of a chemical or drug. It should be differentiated from DRUG TOLERANCE which is the progressive diminution of the susceptibility of a human or animal to the effects of a drug, as a result of continued administration.

Drug Resistance, Bacterial

The ability of bacteria to resist or to become tolerant to chemotherapeutic agents, antimicrobial agents, or antibiotics. This resistance may be acquired through gene mutation or foreign DNA in transmissible plasmids (R FACTORS).

Drug Resistance, Fungal

The ability of fungi to resist or to become tolerant to chemotherapeutic agents, antifungal agents, or antibiotics. This resistance may be acquired through gene mutation.

Drug Resistance, Microbial

The ability of microorganisms, especially bacteria, to resist or to become tolerant to chemotherapeutic agents, antimicrobial agents, or antibiotics. This resistance may be acquired through gene mutation or foreign DNA in transmissible plasmids (R FACTORS).

Drug Resistance, Multiple

Simultaneous resistance to several structurally and functionally distinct drugs.

Drug Resistance, Multiple, Bacterial

The ability of bacteria to resist or to become tolerant to several structurally and functionally distinct drugs simultaneously. This resistance may be acquired through gene mutation or foreign DNA in transmissible plasmids (R FACTORS).

Drug Resistance, Multiple, Fungal

The ability of fungi to resist or to become tolerant to several structurally and functionally distinct drugs simultaneously. This resistance phenotype may be attributed to multiple gene mutations.

Drug Resistance, Multiple, Viral

The ability of viruses to resist or to become tolerant to several structurally and functionally distinct drugs simultaneously. This resistance phenotype may be attributed to multiple gene mutation.

Drug Resistance, Neoplasm

Resistance or diminished response of a neoplasm to an antineoplastic agent in humans, animals, or cell or tissue cultures.

Drug Resistance, Viral

The ability of viruses to resist or to become tolerant to chemotherapeutic agents or antiviral agents. This resistance is acquired through gene mutation.

Drug Tolerance

Progressive diminution of the susceptibility of a human or animal to the effects of a drug, resulting from its continued administration. It should be differentiated from DRUG RESISTANCE wherein an organism, disease, or tissue fails to respond to the intended effectiveness of a chemical or drug. It should also be differentiated from MAXIMUM TOLERATED DOSE and NO-OBSERVED-ADVERSE-EFFECT LEVEL.