Z87 is an ICD-10-CM category code used to record a patient's personal history of conditions that no longer exist but are significant for current medical management, risk assessment, or future health planning. These 'Z' codes, specifically within the Z87 category, are crucial for providing a comprehensive picture of a patient's health status. Unlike active disease codes (e.g., from Chapter 1, A00-B99, or Chapter 13, M00-M99), Z87 indicates that the patient has a past history of a particular disease or condition which is no longer present but still has clinical relevance. This can include a wide array of conditions that have been resolved, treated, or are currently inactive, but whose previous existence may influence current treatment decisions, predispositions, or the need for preventative measures. For instance, a personal history of traumatic arthritis, while not an active diagnosis, would be pertinent for understanding joint health, potential vulnerabilities, or future risk of osteoarthritis. The Z87 category encompasses personal history of conditions not specifically covered by more focused 'Z' codes, such as personal history of malignant neoplasm (Z85) or family history codes (Z80-Z84). Its primary purpose is to provide context for a current encounter, allowing healthcare providers to factor in past medical events when assessing current health status, planning interventions, or educating patients about their health trajectory. It emphasizes the importance of a detailed medical history in holistic patient care.
Distinguish personal history from current conditions by confirming the disease is no longer present and requires no active treatment or medication therapy.
Example: Patient seen for annual wellness exam. Documentation states personal history of pulmonary embolism in 2021, completed 6 months of anticoagulation therapy. No current signs of venous thromboembolism. Billing focus: Z87.828. Risk adjustment: Provides context for clinical complexity and contraindications for future hormone replacement therapy.
Billing Focus: Identify the specific body system or clinical category of the resolved condition to select the most granular subcode.
Avoid using Z87 codes for conditions that are chronic and ongoing, such as hypertension or diabetes, even if they are currently well-controlled.
Example: History of transient ischemic attack in 2019 without residual neurological deficits. Currently on prophylactic aspirin 81mg daily. Billing focus: Z87.820. Risk adjustment: This history code alerts auditors to increased cardiovascular risk profile even in the absence of active stroke.
Billing Focus: Documentation must specify that the condition is resolved or no longer actively managed as a primary diagnosis.
For history of nicotine dependence, document the specific former usage and the duration since cessation to support Z87.891.
Example: Patient is a former heavy smoker, personal history of nicotine dependence. Quit 5 years ago. No current tobacco use. Billing focus: Z87.891. Risk adjustment: Impacts lung cancer screening eligibility and risk profiling for respiratory or cardiovascular comorbidities.
Billing Focus: Use Z87.891 specifically for patients who previously met criteria for dependence but are now tobacco-free.
Capture history of gestational conditions in non-pregnant patients to provide context for long-term metabolic or cardiovascular monitoring.
Example: Patient with personal history of gestational diabetes during third pregnancy in 2018. Current A1c is 5.4 percent. Billing focus: Z87.51. Risk adjustment: Identifies high-risk status for future development of Type 2 Diabetes Mellitus.
Billing Focus: Link history to current preventative screening rationale (e.g., more frequent glucose monitoring).
Specify the exact nature of past traumatic events, such as healed fractures or traumatic brain injuries, when they impact current physical examination findings.
Example: Physical exam shows limited range of motion in the right ankle due to personal history of a non-traumatic stress fracture in 2022, now healed. Billing focus: Z87.310. Risk adjustment: Explains physical limitations and justifies the necessity of physical therapy or specialized imaging.
Billing Focus: Ensure laterality is noted if the history code allows for anatomical specificity.
Document history of colonic polyps to support shortened intervals for screening colonoscopies under Z87.19.
Example: Patient presents for colonoscopy referral. History of adenomatous colonic polyps removed in 2020. Billing focus: Z87.19. Risk adjustment: Justifies high-risk screening status and affects the frequency of covered preventative services.
Billing Focus: Detail the pathology of the historical polyp (e.g., adenomatous vs. hyperplastic) to justify the Z-code choice.
Used for monitoring patients with stable historical conditions requiring low complexity management.
Used when a personal history (e.g., history of PE or TIA) increases the complexity of managing new, related symptoms.
Standard for new patient intake where a comprehensive personal medical history (Z87) is established.
Linked to Z87.19 (History of colonic polyps) to justify screening at non-standard intervals.
Ordered frequently for patients with Z87.828 (History of circulatory disease) to monitor for new cardiac changes.
Used for patients with Z87.01 (History of pneumonia) presenting with new respiratory symptoms.
The collection of Z87 codes is a core component of the history taken during a preventive visit.
History of benign breast lesions (Z87.2) may impact the interpretation or frequency of screening.
Indicated for patients with Z87.891 (History of nicotine dependence) to screen for subclinical COPD.
Used for patients with Z87.891 who are currently abstinent but require support to prevent relapse.