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C40.9 vs Z85.83

C40.9 (Malignant neoplasm of unspecified bones and articular cartilage of limb) compared with Z85.83 (Personal history of malignant neoplasm of bone and soft tissue), from the official CMS tabular data. Z85.83 is the personal-history/screening code for the active disease C40.9 names. MedCoder-derived

Relationship

Review

Condition lifecycle relationship

Z85.83
Personal history of malignant neoplasm of bone and soft tissue
↔
C40.9
Malignant neoplasm of unspecified bones and articular cartilage of limb

Personal-history or screening code versus the active disease.

Active disease for this site (bone)

A personal-history code describes a condition that no longer exists and is no longer being treated, so it is not interchangeable with the active-disease code for the same site.

Source: CMS Table of Neoplasms (site match derived from the code title)

Can these codes be reported together?

History or screening versus active disease. Z85.83 is the personal-history or screening code for the active disease C40.9 names.

Site match derived from the code’s own title against the CMS/CDC Table of Neoplasms. A personal-history code describes a condition that no longer exists and is no longer being treated, so it is not interchangeable with the active-disease code.

Side by side

C40.9Malignant neoplasm of unspecified bones and articular cartilage of limbZ85.83Personal history of malignant neoplasm of bone and soft tissue
Billing statusNon-billable header

Report instead: C40.90, C40.91, C40.92

Non-billable header

Report instead: Z85.830, Z85.831

ClassificationC00-D49 — NeoplasmsZ00-Z99 — Factors influencing health status and contact with health services
DefinitionMalignant neoplasm of unspecified bones and articular cartilage of limb is a non-billable ICD-10-CM category code (C40.9).Personal history of malignant neoplasm of bone and soft tissue is a non-billable ICD-10-CM category code (Z85.83).
Includes
malignant neoplasm of cartilage (articular) (joint)
malignant neoplasm of periosteum
Conditions classifiable to C40-C41; C45-C49
Use additional code
code to identify major osseous defect, if applicable (M89.7-)
code to identify:
alcohol use and dependence (F10.-)
exposure to environmental tobacco smoke (Z77.22)
Code first—
any follow-up examination after treatment of malignant neoplasm (Z08)
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Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources