Z86.006 Personal history of melanoma in-situ

Billable ICD-10-CM code, FY2026. Exempt from present-on-admission (POA) reporting.

Applicable to

• Conditions classifiable to D03

Excludes2 (not included here)

• sites other than skin - code to personal history of in-situ neoplasm of the site

Applies from Z86 Personal history of certain other diseases

Code first

• any follow-up examination after treatment (Z09)

Applies from Z86.0 Personal history of in-situ and benign neoplasms and neoplasms of uncertain behavior

Excludes2 (not included here)

• personal history of malignant neoplasms (Z85.-)

Applies from Z86.00 Personal history of in-situ neoplasm

Applicable to

• Conditions classifiable to D00-D09

MS-DRG index

Defines the logic of DRG(s) 951 in MDC 23.

Medicare Code Edits (MCE v43.1 (April 2026))

• Unacceptable principal diagnosis: These codes describe a circumstance which influences care but is not a current illness or injury, or capture only an underlying condition, and are unacceptable as principal diagnosis.

Code annotations containing back-references to Z86.006

Back-references to Z86.00

• Type 2 Excludes: Z85 Personal history of malignant neoplasm ("personal history of carcinoma-in-situ (Z86.00-)")

Back-references to Z86

• Use Additional: Z09 Encounter for follow-up examination after completed treatment for conditions other than malignant neoplasm ("code to identify any applicable history of disease code (Z86.-, Z87.-)")

Diagnosis Index entries for Z86.006

• History › personal (of) › in situ neoplasm › melanoma
• History › personal (of) › melanoma › in situ
• History › personal (of) › neoplasm › in situ › melanoma

Nearby codes

• Z86.001 Personal history of in-situ neoplasm of cervix uteri
• Z86.002 Personal history of in-situ neoplasm of other and unspecified genital organs
• Z86.003 Personal history of in-situ neoplasm of oral cavity, esophagus and stomach
• Z86.004 Personal history of in-situ neoplasm of other and unspecified digestive organs
• Z86.005 Personal history of in-situ neoplasm of middle ear and respiratory system
• Z86.006 Personal history of melanoma in-situ (this code)
• Z86.007 Personal history of in-situ neoplasm of skin
• Z86.008 Personal history of in-situ neoplasm of other site
• Z86.00A Personal history of in-situ neoplasm of the fallopian tube(s)
• Z86.01 Personal history of benign neoplasm
• Z86.010 Personal history of colon polyps