{"code":"D55.21","type":"code","title":"Anemia due to pyruvate kinase deficiency","codeAlso":[],"includes":[],"modern_v":"official26","codeFirst":[],"excludes1":["disorders of glycolysis not associated with anemia (E74.81-)","drug-induced enzyme deficiency anemia (D59.2)"],"excludes2":[],"isBillable":true,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":true,"billableFy2027":true},"inclusionTerms":["PK deficiency anemia","Pyruvate kinase deficiency anemia"],"useAdditionalCode":[],"clinicalDefinition":"Anemia due to pyruvate kinase deficiency is a billable ICD-10-CM diagnosis code (D55.21). Inclusion terms: PK deficiency anemia; Pyruvate kinase deficiency anemia. Excludes1 (not coded here): disorders of glycolysis not associated with anemia (E74.81-); drug-induced enzyme deficiency anemia (D59.2).","officialDefinition":"Anemia due to pyruvate kinase deficiency is a billable ICD-10-CM diagnosis code (D55.21). Inclusion terms: PK deficiency anemia; Pyruvate kinase deficiency anemia. Excludes1 (not coded here): disorders of glycolysis not associated with anemia (E74.81-); drug-induced enzyme deficiency anemia (D59.2).","seventhCharacterInstructions":[],"workflowProtocols":[],"guidelines":{"whenToUse":[],"whenNotToUse":[],"commonBillingMistakes":[],"codeComparisons":[],"documentationChecklist":[]},"domainLandscape":{"summary":"Primary diagnostic domain and clinical landscape evaluation.","keyCategories":[],"diagnosticContinuum":"Progression continuum from acute presentation to resolution."},"children":[],"hierarchy":[],"relatedCodes":[],"relevantCPTCodes":[],"documentationTips":[],"caseStudies":[],"description":"","overview":""}