Z83.518 — Family history of other specified eye disorder
Is Z83.518 billable?
Yes, but Z83.518 is an unspecified code. Z83.518 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, Z83.518 is an unspecified or catch-all code. Payers apply additional scrutiny to unspecified codes and many deny them when the medical record supports a more specific option, so check the documentation before selecting Z83.518 — the more specific alternatives are listed below.
More specific alternatives
Z83.518 at a glance
| Code | Z83.518 |
|---|---|
| Description | Family history of other specified eye disorder |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
What Medicare edits apply to Z83.518?
The Medicare Code Editor screens inpatient claims before they are grouped. These edits name Z83.518 directly.
CMS will reject this code as the principal diagnosis on an inpatient claim. It describes something other than the condition chiefly responsible for the admission.
Which MS-DRGs does Z83.518 group to?
Z83.518 sits in MDC 23 and helps define the logic of 1 MS-DRG (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 951Other Factors Influencing Health Statusmedical
How is Z83.518 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to Z83.518. They show the wording a clinician may have documented, which often differs from the Tabular description.
- History › family › disease or disorder › eye NEC
Excludes2 — not included here — inherited from Z83
The conditions below are not part of Z83.518, but a patient may have both at the same time. When documentation supports it, Z83.518 and the excluded code may both be reported.
- contact with and (suspected) exposure to communicable disease in the family (Z20.-)
Excludes2 — not included here — inherited from Z83.51
The conditions below are not part of Z83.518, but a patient may have both at the same time. When documentation supports it, Z83.518 and the excluded code may both be reported.
- family history of blindness and visual loss (Z82.1)
Code also — inherited from Z77-Z99
Two codes may be needed to describe the condition fully. Whether Z83.518 is sequenced first depends on the reason for the encounter.
- any follow-up examination (Z08-Z09)
How long has Z83.518 existed?
Z83.518 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.