Z86.61 is the authoritative medical code for Personal history of infections of the central nervous system. This classification is used in medical billing and clinical recording to specify the clinical criteria for personal history of infections of the central nervous system (ICD-10-CM Z86.61), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Personal history of infections of the central nervous system is a billable ICD-10-CM diagnosis code Z86.61. Inclusion terms: Personal history of encephalitis; Personal history of meningitis. Code first: any follow-up examination after treatment Z09. Code also: any follow-up examination Z08-Z09.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for Z86.61 in the official ICD-10-CM tabular list.
Inclusion Terms
Alternative terms the tabular list files under this code.
- Personal history of encephalitis
- Personal history of meningitis
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
Frequently Asked Questions (FAQ) & Clinical Guidance
Does Z86.61 need to be sequenced after another code?
Yes. Code first: any follow-up examination after treatment (Z09).
What conditions are included under Z86.61?
Personal history of infections of the central nervous system includes: Personal history of encephalitis; Personal history of meningitis.
Codes in This Family (40)
Official ICD-10-CM classifications in the same code family as Z86.61, with their registry titles.
- Z86 — Personal history of certain other diseases
- Z86.0 — Personal history of in-situ and benign neoplasms and neoplasms of uncertain behavior
- Z86.000 — Personal history of in-situ neoplasm of breast
- 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
- 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
- Z86.0100 — Personal history of colon polyps, unspecified
- Z86.0101 — Personal history of adenomatous and serrated colon polyps
- Z86.0102 — Personal history of hyperplastic colon polyps
- Z86.0109 — Personal history of other colon polyps
- Z86.011 — Personal history of benign neoplasm of the brain
- Z86.012 — Personal history of benign carcinoid tumor
- Z86.018 — Personal history of other benign neoplasm
- Z86.03 — Personal history of neoplasm of uncertain behavior
- Z86.1 — Personal history of infectious and parasitic diseases
- Z86.11 — Personal history of tuberculosis
- Z86.12 — Personal history of poliomyelitis
- Z86.13 — Personal history of malaria
- Z86.14 — Personal history of Methicillin resistant Staphylococcus aureus infection
- Z86.15 — Personal history of latent tuberculosis infection
- Z86.16 — Personal history of COVID-19
- Z86.19 — Personal history of other infectious and parasitic diseases
- Z86.2 — Personal history of diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism
- Z86.3 — Personal history of endocrine, nutritional and metabolic diseases
- Z86.31 — Personal history of diabetic foot ulcer
- Z86.32 — Personal history of gestational diabetes
- Z86.39 — Personal history of other endocrine, nutritional and metabolic disease
- Z86.5 — Personal history of mental and behavioral disorders
- Z86.51 — Personal history of combat and operational stress reaction
- Z86.59 — Personal history of other mental and behavioral disorders
- Z86.6 — Personal history of diseases of the nervous system and sense organs
- Z86.69 — Personal history of other diseases of the nervous system and sense organs
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), encephalitis
- History, personal (of), infection NEC, central nervous system
- History, personal (of), meningitis
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures:
ICD Code Z87.61
Personal history of (corrected) necrotizing enterocolitis of newborn