Z85.9 is the authoritative medical code for Personal history of malignant neoplasm, unspecified. This classification is used in medical billing and clinical recording to specify the clinical criteria for personal history of malignant neoplasm, unspecified (ICD-10-CM Z85.9), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Personal history of malignant neoplasm, unspecified is a billable ICD-10-CM diagnosis code Z85.9. Inclusion terms: Conditions classifiable to C7A.00, C80.1. Excludes2 (not included here): personal history of benign neoplasm Z86.01-; personal history of carcinoma-in-situ Z86.00-. Code first: any follow-up examination after treatment of malignant neoplasm Z08. Use additional code: code to identify:; alcohol use and dependence F10.-; exposure to environmental tobacco smoke Z77.22; history of tobacco dependence Z87.891; occupational exposure to environmental tobacco smoke Z57.31; tobacco dependence F17.-; tobacco use Z72.0. Code also: any follow-up examination Z08-Z09.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for Z85.9 in the official ICD-10-CM tabular list.
Inclusion Terms
Alternative terms the tabular list files under this code.
- Conditions classifiable to C7A.00, C80.1
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- personal history of benign neoplasm Z86.01-
- personal history of carcinoma-in-situ Z86.00-
Code First
Underlying conditions that must be sequenced before this code.
- any follow-up examination after treatment of malignant neoplasm Z08
Code Also
Additional codes that may be required to fully describe the encounter.
- any follow-up examination Z08-Z09
Use Additional Code
Supplementary codes the tabular list directs you to add.
- code to identify:
- alcohol use and dependence F10.-
- exposure to environmental tobacco smoke Z77.22
- history of tobacco dependence Z87.891
- occupational exposure to environmental tobacco smoke Z57.31
- tobacco dependence F17.-
- tobacco use Z72.0
Frequently Asked Questions (FAQ) & Clinical Guidance
Can Z85.9 be reported alongside related conditions?
Per Excludes2 instructions, Z85.9 and the following may both be reported when both are present: personal history of benign neoplasm (Z86.01-); personal history of carcinoma-in-situ (Z86.00-).
Does Z85.9 need to be sequenced after another code?
Yes. Code first: any follow-up examination after treatment of malignant neoplasm (Z08).
Is an additional code needed with Z85.9?
Use additional code(s) to specify: code to identify:; alcohol use and dependence (F10.-); exposure to environmental tobacco smoke (Z77.22); history of tobacco dependence (Z87.891).
What conditions are included under Z85.9?
Personal history of malignant neoplasm, unspecified includes: Conditions classifiable to C7A.00, C80.1.
Codes in This Family (40)
Official ICD-10-CM classifications in the same code family as Z85.9, with their registry titles.
- Z85 — Personal history of malignant neoplasm
- Z85.0 — Personal history of malignant neoplasm of digestive organs
- Z85.01 — Personal history of malignant neoplasm of esophagus
- Z85.02 — Personal history of malignant neoplasm of stomach
- Z85.020 — Personal history of malignant carcinoid tumor of stomach
- Z85.028 — Personal history of other malignant neoplasm of stomach
- Z85.03 — Personal history of malignant neoplasm of large intestine
- Z85.030 — Personal history of malignant carcinoid tumor of large intestine
- Z85.038 — Personal history of other malignant neoplasm of large intestine
- Z85.04 — Personal history of malignant neoplasm of rectum, rectosigmoid junction, and anus
- Z85.040 — Personal history of malignant carcinoid tumor of rectum
- Z85.048 — Personal history of other malignant neoplasm of rectum, rectosigmoid junction, and anus
- Z85.05 — Personal history of malignant neoplasm of liver
- Z85.06 — Personal history of malignant neoplasm of small intestine
- Z85.060 — Personal history of malignant carcinoid tumor of small intestine
- Z85.068 — Personal history of other malignant neoplasm of small intestine
- Z85.07 — Personal history of malignant neoplasm of pancreas
- Z85.09 — Personal history of malignant neoplasm of other digestive organs
- Z85.1 — Personal history of malignant neoplasm of trachea, bronchus and lung
- Z85.11 — Personal history of malignant neoplasm of bronchus and lung
- Z85.110 — Personal history of malignant carcinoid tumor of bronchus and lung
- Z85.118 — Personal history of other malignant neoplasm of bronchus and lung
- Z85.12 — Personal history of malignant neoplasm of trachea
- Z85.2 — Personal history of malignant neoplasm of other respiratory and intrathoracic organs
- Z85.20 — Personal history of malignant neoplasm of unspecified respiratory organ
- Z85.21 — Personal history of malignant neoplasm of larynx
- Z85.22 — Personal history of malignant neoplasm of nasal cavities, middle ear, and accessory sinuses
- Z85.23 — Personal history of malignant neoplasm of thymus
- Z85.230 — Personal history of malignant carcinoid tumor of thymus
- Z85.238 — Personal history of other malignant neoplasm of thymus
- Z85.29 — Personal history of malignant neoplasm of other respiratory and intrathoracic organs
- Z85.3 — Personal history of malignant neoplasm of breast
- Z85.4 — Personal history of malignant neoplasm of genital organs
- Z85.40 — Personal history of malignant neoplasm of unspecified female genital organ
- Z85.41 — Personal history of malignant neoplasm of cervix uteri
- Z85.42 — Personal history of malignant neoplasm of other parts of uterus
- Z85.43 — Personal history of malignant neoplasm of ovary
- Z85.44 — Personal history of malignant neoplasm of other female genital organs
- Z85.45 — Personal history of malignant neoplasm of unspecified male genital organ
- Z85.46 — Personal history of malignant neoplasm of prostate
Indexed Clinical Terms (1)
Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.
- History, personal (of), malignant neoplasm (of)
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures:
ICD Code Z88.9
Allergy status to unspecified drugs, medicaments and biological substances