Z86.3

Personal history of endocrine, nutritional and metabolic diseases

ICD-10-CM code Z86.3, "Personal history of endocrine, nutritional and metabolic diseases," serves as a crucial classification for documenting a patient's past medical conditions within the specified categories. This code is part of Chapter 21, "Factors influencing health status and contact with health services" (Z00-Z99), specifically falling under the block Z80-Z99, which addresses personal and family history and certain conditions influencing health status. As a category code, Z86.3 itself is not billable as a primary diagnosis; it requires further specificity through its sub-codes, such as Z86.31 for "Personal history of venous thrombosis and embolism" or Z86.39 for "Personal history of other endocrine, nutritional and metabolic diseases," which are used when the exact type of past condition is not otherwise specified or if a specific sub-code is provided.The primary purpose of using a personal history code like Z86.3 is to record a condition that the patient previously had but is no longer active, receiving treatment, or producing current symptoms. Despite being resolved, the history of such a condition remains clinically significant for several reasons. It can indicate a predisposition to future health issues, influence diagnostic considerations for new symptoms, or impact decisions regarding preventive care, medications, or surgical interventions. For instance, a patient with a history of diabetes, even if currently well-controlled without medication (e.g., through diet and exercise), would have this history documented because it carries implications for cardiovascular risk, kidney function monitoring, and other long-term health surveillance.Coding guidelines dictate that Z86.3 should not be used for current, active diseases. If the patient is still being treated for an endocrine, nutritional, or metabolic disorder, or if it has ongoing complications or manifestations, the code for the active disease or its sequelae should be used instead. For example, if a patient has a history of type 2 diabetes that is now controlled with medication, the active diabetes code (e.g., E11.9) would be used, possibly alongside the personal history code if additional context is necessary for a different encounter reason. The Z86.3 category encompasses a broad spectrum of conditions, including various forms of diabetes mellitus, thyroid disorders (e.g., hyperthyroidism, hypothyroidism), lipid disorders (e.g., hypercholesterolemia, hypertriglyceridemia), obesity, gout, and other metabolic syndromes. Clinicians utilize these history codes to maintain a comprehensive and accurate medical record, facilitating a holistic approach to patient management and risk stratification, ensuring that past health events inform current and future care strategies.

Documentation & Coding Tips

Clearly differentiate between a 'personal history' and an 'active' disease. For Z86.3, the patient must no longer be receiving treatment for the primary endocrine, nutritional, or metabolic disease and the condition must be resolved. Document the specific disease and the date/status of its resolution.

Example: POOR DOCUMENTATION: 'Patient seen for routine follow-up. Hx of Type 2 DM.' (Does not clarify if DM is active or resolved, leading to potential undercoding for active disease or overcoding if resolved and billed as active).EXCELLENT DOCUMENTATION: 'Patient is a 62 y.o. female presenting for annual wellness visit. Pertinent PMH includes Type 2 Diabetes Mellitus, diagnosed 10 years ago, which resolved 3 years ago after significant lifestyle modification and bariatric surgery. Patient currently maintains euglycemic state with HbA1c 5.4% (most recent lab 3 months ago) and is off all anti-diabetic medications. No current management required for DM. This history is noted as a risk factor for future metabolic derangements. Assessment: Z86.39 - Personal history of other endocrine, nutritional and metabolic diseases (specifically, resolved Type 2 DM). Patient continues routine surveillance due to this history. Plan: Continue lifestyle modifications, recheck HbA1c in 6 months, monitor for any signs of recurrence.'

Billing Focus: Explicitly state 'resolved' and the lack of current active treatment for the specific prior condition. This prevents billing for active disease management when only a history exists. Ensure the documentation supports why the history is relevant to the current encounter (e.g., for risk assessment, screening, or monitoring for sequelae).

When documenting Z86.3, be as specific as possible about the underlying endocrine, nutritional, or metabolic disease that is now a 'personal history'. Avoid vague terms.

Example: POOR DOCUMENTATION: 'Patient has a history of thyroid problem.' (Too vague, does not specify the condition or its resolution status).EXCELLENT DOCUMENTATION: 'Patient is a 45 y.o. male for routine physical. PMH includes Graves' disease diagnosed 5 years ago, treated with thyroidectomy 4 years ago, now euthyroid on levothyroxine 100mcg daily with TSH within normal limits for the past 3 years. This constitutes a personal history of hyperthyroidism, though patient is on replacement therapy for post-surgical hypothyroidism. The resolved hyperthyroidism (Graves' disease) is noted as Z86.39. Current hypothyroidism is separately coded as E03.9. Assessment: Z86.39 (Personal history of Graves' disease status post thyroidectomy) and E03.9 (Hypothyroidism). Plan: Continue levothyroxine, recheck TSH in 6 months.'

Billing Focus: Specificity helps auditors understand the clinical picture, especially when distinguishing between the history code and codes for current related conditions (like post-surgical hypothyroidism). It supports medical necessity for ongoing monitoring or medication management related to the sequelae of the historical condition, not the historical condition itself.

Relevant CPT Codes

  • 99213 - Office or other outpatient visit, established patient

    Often used for routine follow-up visits where a patient's history of endocrine, nutritional, or metabolic disease is reviewed for ongoing risk assessment, monitoring for recurrence, or management of related stable conditions. The Z86.3 code would support the medical necessity for discussing this aspect of their PMH.

  • 99214 - Office or other outpatient visit, established patient

    For more complex follow-up where the history of endocrine/metabolic disease contributes to moderate medical decision making (e.g., evaluating for late complications of a resolved disease, or managing multiple comorbidities influenced by the history).

  • 80053 - Comprehensive metabolic panel (CMP)

    Often ordered for patients with a history of metabolic or nutritional diseases (e.g., resolved diabetes, history of bariatric surgery) to monitor general metabolic status, kidney function, liver function, and electrolyte balance, even if the primary condition is resolved.

  • 82947 - Glucose; quantitative, blood (except reagent strip)

    Used for monitoring in patients with a history of diabetes or other glucose dysregulation, even if the condition is resolved, to screen for recurrence or stability.

  • 83036 - Hemoglobin A1C

    Essential for long-term monitoring in patients with a history of diabetes to confirm sustained remission or detect early signs of prediabetes/recurrence.

  • 84443 - Thyroid stimulating hormone (TSH)

    Applicable for patients with a history of thyroid disease (e.g., hyperthyroidism, thyroidectomy) to monitor their current thyroid status and assess for ongoing euthyroid state or developing hypothyroidism/hyperthyroidism.

Related Diagnoses

Hierarchy