Z82.4 ICD-10-CM Code: Family history of ischemic heart disease and other diseases of the circulatory system

Coding instructions

Official Tabular Instructional Notes: the inclusion, exclusion and sequencing notes published for Z82.4 in the official ICD-10-CM tabular list, quoted as published.

Notes without a marker are published on Z82.4 itself; “inherited from” names the category or block whose note applies here.

Coder workflow for Z82.4

MedCoder structured workflow — derived from this code’s own official record

Before you code Z82.4

1. Z82.4 is not reportable as written. Select the more specific code beneath it that the documentation supports. Codes are reported to the highest level of specificity the classification provides (Guidelines I.B.2).

   ReviewZ82.41, Z82.49

   See the relationships section · Guide: How to choose an ICD-10-CM code →

2. Confirm the reason for the encounter this Z code records: a personal or family history — a condition no longer present or present in a relative — never a current condition. Check whether the code may be reported as first-listed or principal — some Z codes are limited to one position — and do not report a history or status code for a condition documented as current. Z code categories and their reporting positions (Guidelines I.C.21.c.4, I.C.21.c.15).

   Guide: History codes (Z codes) →

Choose the right path

1. Does the documentation support one of the more specific codes beneath Z82.4?
   Yes → Select that code and continue the checks below on its own page.
   No → Z82.4 cannot be reported as written; query for the specificity its subcategory needs.

   ReviewZ82.41, Z82.49

Consider Z82.4. Then review the Code Also note, and confirm the code is valid for the date of service in the Verify section.

Documentation check

The provider’s diagnostic statement

Codes are assigned from the provider’s documented diagnosis, not from clinical criteria, test values or a medication list (Guidelines I.A.19).

Acuity

Acute or chronic as documented; when both are documented and separate codes exist, both are reported with the acute code first (Guidelines I.B.8).

The reason for the encounter

Whether the code records the encounter’s purpose, a status, or a history — and whether it may be first-listed (Guidelines I.C.21.c).

Official instructions as workflow

• Code Also — related condition(1 note)

  Coding workflow: Review the related condition when both are documented and the instruction applies. A Code Also note does not fix sequencing; the order follows the circumstances of the encounter.

  See the official tabular notes · Guidelines I.A.17

Every row is derived from this code’s own record — its title, tabular notes, 7th-character family and same-category siblings — with fixed MedCoder wording; nothing is inferred about a patient. The official notes and guideline text are in the sections each row links to, and they control.

Verify Before Coding

• Not billable as written — a more specific code is required: Z82.41, Z82.49.

From the code registry, the Medicare Code Editor, and the MS-DRG Definitions Manual. Check it against a full claim in Claim Check.

Relationships & Classification

MedCoder structured relationships — computed from published CMS and AHRQ datasets

Other codes that name Z82.4 or its code family, from the CMS ICD-10-CM tabular instructional notes. Tabular-note edges are stored at the code family level that carries each note.

Referenced by 1 Use Additional Code instruction: Z15 — Genetic susceptibility to disease (via Z82.-).

These codes instruct coders to additionally report this code when it applies.

Contextual Map

Every relationship of Z82.4 in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.

Run Z82.4 with this related code in Claim Check

Hierarchy

• Z00-Z99 — Chapter 21: Factors Influencing Health Status and Contact with Health Services (Z00-Z99) (Z00-Z99)[Hierarchy]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• Z77-Z99 — Persons with potential health hazards related to family and personal history and certain conditions influencing health status[Hierarchy]— CMS ICD-10-CM tabular structure · icd10cm-fy2026

Referenced by Use Additional Code instructions

• Z15 — Genetic susceptibility to disease[Use Additional Code](via Z82.-): “code, if applicable, for any associated family history of the disease (Z80-Z84)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026

Nearest codes (16)

• Z82 — Family history of certain disabilities and chronic diseases (leading to disablement)[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• Z82.0 — Family history of epilepsy and other diseases of the nervous system[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• Z82.1 — Family history of blindness and visual loss[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• Z82.2 — Family history of deafness and hearing loss[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• Z82.3 — Family history of stroke[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• Z82.41 — Family history of sudden cardiac death[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• Z82.49 — Family history of ischemic heart disease and other diseases of the circulatory system[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• Z82.5 — Family history of asthma and other chronic lower respiratory diseases[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• and 8 more

Change history

• FY2016 — In the code set at ICD-10-CM adoption [Change history]— CMS release files (code change ledger) · icd10cm-fy2016

Common coding questions

Sources for this page

Codes, titles, notes, index terms and mappings on this page are transcribed from the datasets below. Relationships MedCoder computed and text MedCoder wrote are labelled where they appear.

Code, title, tabular notes and index terms Official source data

CMS/CDC ICD-10-CM FY2026 tabular list, index and tables, effective October 1, 2025 Release, file and checksum · Publisher’s page

Claim edits Official source data

CMS Definitions of Medicare Code Edits — v43.1 (April 2026) Release, file and checksum · Publisher’s page

Change history and date-of-service validity Official source data

CMS ICD-10-CM release addenda, ingested release by release into the change ledger Release, file and checksum · Publisher’s page

Comparisons, relationships and the contextual map MedCoder structured relationship

Computed by MedCoder from the tabular notes and tables above; every derived relationship is marked as derived where it appears

Summary and FAQ answers MedCoder explanation

Written by MedCoder to explain the sources above: drafted with AI assistance, checked by a person against the release files, and labelled as MedCoder text where it appears. Not official text.

Labels on this page: Official source data · MedCoder structured relationship · MedCoder explanation. How to read the labels · All data sources and release dates

Nearest Codes in This Family

Official ICD-10-CM classifications closest to Z82.4 in its code family, with their registry titles.

• Z82 — Family history of certain disabilities and chronic diseases (leading to disablement)
• Z82.0 — Family history of epilepsy and other diseases of the nervous system
• Z82.1 — Family history of blindness and visual loss
• Z82.2 — Family history of deafness and hearing loss
• Z82.3 — Family history of stroke
• Z82.41 — Family history of sudden cardiac death
• Z82.49 — Family history of ischemic heart disease and other diseases of the circulatory system
• Z82.5 — Family history of asthma and other chronic lower respiratory diseases
• Z82.6 — Family history of arthritis and other diseases of the musculoskeletal system and connective tissue
• Z82.61 — Family history of arthritis

View all codes in the Z82 family