ICD-10 · PDGM grouping
Z86 Personal history of certain other diseases
All 40 codes in the Z86 family, with the PDGM clinical group, comorbidity subgroup and primary-position rule CMS assigns, read from the CMS grouper crosswalk v07.2.26 and the CDC FY2027 code file.
ICD-10-CM FY2027 · CMS grouper v07.2.26
Codes in family
40
Can lead a claim
0
Cannot lead a claim
40
What CMS assigns to Z86
None of the 40 codes is assigned a clinical group. None of the 40 is assigned a comorbidity subgroup. None can lead a claim. CMS attaches a code-first note to all 40.
Code first
CMS grouper convention 178, on all 40 codes. Code first:
- any follow-up examination after treatment (Z09)
Every code in Z86
Descriptions are CDC’s FY2027 wording; where CMS’s grouper abbreviates one, its form is shown beneath.
| Code | Description | Primary position | Clinical group | Comorbidity subgroup |
|---|---|---|---|---|
| Z86.0 Personal history of in-situ and benign neoplasms and neoplasms of uncertain behavior | ||||
| Z86.00 Personal history of in-situ neoplasm | ||||
| Z86.000 | Personal history of in-situ neoplasm of breast | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z86.001 | Personal history of in-situ neoplasm of cervix uteri | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z86.002 | Personal history of in-situ neoplasm of other and unspecified genital organsCMS: Pers hx of in-situ neoplasm of other and unsp genital organs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z86.003 | Personal history of in-situ neoplasm of oral cavity, esophagus and stomachCMS: Pers hx of in-situ neoplm of oral cavity, esoph and stomach | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z86.004 | Personal history of in-situ neoplasm of other and unspecified digestive organsCMS: Pers hx of in-situ neoplasm of other and unsp dgstv orgs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z86.005 | Personal history of in-situ neoplasm of middle ear and respiratory systemCMS: Pers hx of in-situ neoplasm of middle ear and resp sys | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z86.006 | Personal history of melanoma in-situ | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z86.007 | Personal history of in-situ neoplasm of skin | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z86.008 | Personal history of in-situ neoplasm of other site | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z86.00A | Personal history of in-situ neoplasm of the fallopian tube(s)CMS: Pers hx of in-situ neoplasm of the fallopian tube(s) | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| Z86.01 Personal history of benign neoplasm | ||||
| Z86.010 Personal history of colon polyps | ||||
| Z86.0100 | Personal history of colon polyps, unspecified | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| Z86.0101 | Personal history of adenomatous and serrated colon polyps | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| Z86.0102 | Personal history of hyperplastic colon polyps | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| Z86.0109 | Personal history of other colon polyps | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| Z86.011 | Personal history of benign neoplasm of the brain | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z86.012 | Personal history of benign carcinoid tumor | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z86.018 | Personal history of other benign neoplasm | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z86.03 | Personal history of neoplasm of uncertain behavior | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z86.1 Personal history of infectious and parasitic diseases | ||||
| Z86.11 | Personal history of tuberculosis | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z86.12 | Personal history of poliomyelitis | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z86.13 | Personal history of malaria | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z86.14 | Personal history of Methicillin resistant Staphylococcus aureus infectionCMS: Personal history of methicillin resis staph infection | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z86.15 | Personal history of latent tuberculosis infection | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z86.16 | Personal history of COVID-19 | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| Z86.17 | Personal history of Clostridioides difficile infection | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| Z86.19 | Personal history of other infectious and parasitic diseases | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z86.2 | Personal history of diseases of the blood and blood-forming organs and certain disorders involving the immune mechanismCMS: Prsnl history of dis of the bld/bld-form org/immun mechnsm | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z86.3 Personal history of endocrine, nutritional and metabolic diseases | ||||
| Z86.31 | Personal history of diabetic foot ulcer | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z86.32 | Personal history of gestational diabetes | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z86.39 | Personal history of other endocrine, nutritional and metabolic diseaseCMS: Personal history of endo, nutritional and metabolic disease | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z86.5 Personal history of mental and behavioral disorders | ||||
| Z86.51 | Personal history of combat and operational stress reaction | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z86.59 | Personal history of other mental and behavioral disorders | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z86.6 Personal history of diseases of the nervous system and sense organs | ||||
| Z86.61 | Personal history of infections of the central nervous system | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z86.69 | Personal history of other diseases of the nervous system and sense organsCMS: Personal history of dis of the nervous sys and sense organs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z86.7 Personal history of diseases of the circulatory system | ||||
| Z86.71 Personal history of venous thrombosis and embolism | ||||
| Z86.711 | Personal history of pulmonary embolism | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z86.718 | Personal history of other venous thrombosis and embolism | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z86.72 | Personal history of thrombophlebitis | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z86.73 | Personal history of transient ischemic attack (TIA), and cerebral infarction without residual deficitsCMS: Prsnl hx of TIA (TIA), and cereb infrc w/o resid deficits | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z86.74 | Personal history of sudden cardiac arrest | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| Z86.79 | Personal history of other diseases of the circulatory system | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
Sources: CMS HH PPS Grouper Software v07.2.26, effective 2026-10-01, for the clinical group, comorbidity subgroup, code-first conventions and primary-position flags; CDC NCHS ICD-10-CM FY2027 code descriptions for the family title and code wording. This is the crosswalk Medicare runs a claim through. Grouping also depends on admission source, timing, the OASIS functional items and the rest of the diagnosis list.
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