Z85.21
✓ Billable
Personal history of malignant neoplasm of larynx
ICD-10-CM · FY2026 · Factors Influencing Health Status
Code
Z85.21
System
ICD-10-CM
Billable
Yes — valid for submission
Effective
FY2026
Chapter
Factors Influencing Health Status
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code Z85.21?
ICD-10-CM code Z85.21 represents Personal history of malignant neoplasm of larynx. It is a billable diagnosis code in the Factors Influencing Health Status chapter, effective October 1, 2025 – September 30, 2026.
Is Z85.21 billable?
Yes. Z85.21 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is Z85.21 in?
Z85.21 belongs to the Factors Influencing Health Status chapter (Z00–Z99) of ICD-10-CM.
How do I search for an ICD-10 code for personal history of a condition?
If you are looking for a code documenting a patient's own past diagnosis that is now resolved or inactive — sometimes searched as "history of [condition] ICD-10" — Z85.21 (Personal history of malignant neoplasm of larynx) is in the correct Z85–Z87 personal-history block. These codes are reported when a condition no longer requires active treatment but is still clinically relevant.
Related codes in the Z85 category
Z85
Personal history of malignant neoplasm
Non-billable
Z85.0
Personal history of malignant neoplasm of digestive organs
Non-billable
Z85.1
Personal history of malignant neoplasm of trachea, bronchus and lung
Non-billable
Z85.2
Personal history of malignant neoplasm of other respiratory and intrathoracic organs
Non-billable
Z85.3
Personal history of malignant neoplasm of breast
Billable
Z85.4
Personal history of malignant neoplasm of genital organs
Non-billable
Z85.5
Personal history of malignant neoplasm of urinary tract
Non-billable
Z85.6
Personal history of leukemia
Billable
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