Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.

Inpatient Payment Groups (MS-DRG)

MS-DRGs this diagnosis helps define, as principal or secondary, per the CMS ICD-10-CM/PCS MS-DRG Definitions Manual v43.0, Appendix B.

MS-DRG 951 — OTHER FACTORS INFLUENCING HEALTH STATUS (MDC 23)

A diagnosis appearing in a group's logic does not by itself determine the DRG assigned to a stay; the grouper uses the full claim.

Official Registry Overview & Definition

Personal history of melanoma in-situ is a billable ICD-10-CM diagnosis code (Z86.006).

Official Tabular Instructional Notes

Sequencing, inclusion, and exclusion notes published for Z86.006 in the official ICD-10-CM tabular list.

Inclusion Terms

Alternative terms the tabular list files under this code.

Conditions classifiable to D03

Excludes2 — Not Included Here

Conditions not covered by this code, but which may be reported alongside it when both are present.

sites other than skin - code to personal history of in-situ neoplasm of the site
personal history of malignant neoplasms (Z85.-) Compare Z86.006 vs Z85 →

Code First

Underlying conditions that must be sequenced before this code.

any follow-up examination after treatment (Z09)

Code Also

Additional codes that may be required to fully describe the encounter.

any follow-up examination (Z08-Z09)

Change history

FY2020 — 2019-10-01
Added to the code set
Personal history of melanoma in-situ
FY2020 changes

Verify Before Coding

Billable — reportable as written.
Principal-diagnosis restriction. The Medicare Code Editor lists this code as unacceptable as a principal diagnosis: it describes a circumstance influencing health status rather than a current illness or injury being treated. It is valid as a secondary diagnosis.

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

Referenced by Other Codes

Clinical classification (AHRQ CCSR):FAC030 — Personal history of other disease (default).

Clinical Classifications Software Refined (CCSR) for ICD-10-CM Diagnoses. Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality.

Potential MS-DRG Relationships (FY2026)

Not on the CMS CC/MCC list — as a secondary diagnosis this code does not change MS-DRG severity.

Named in the grouper logic of 1 MS-DRG: DRG 951 (MDC 23).

From the CMS MS-DRG Definitions Manual (Appendices B and C). Actual DRG assignment depends on the complete claim.

Official ICD-10-CM tabular notes on other codes that name Z86.006 or its code family.

1 Excludes2 notes: Z85 (via Z86.00.-).

1 Use Additional Code instructions: Z09 (via Z86.-).

Nearest Codes in This Family

Official ICD-10-CM classifications closest to Z86.006 in its code family, with their registry titles.

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
Z86.007 — 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

View all codes in the Z86 family

Indexed Clinical Terms (3)

Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.

History, personal (of), in situ neoplasm, melanoma
History, personal (of), melanoma, in situ
History, personal (of), neoplasm, in situ, melanoma

Z86.006 ICD-10-CM Code: Personal history of melanoma in-situ