H35.00 — Unspecified background retinopathy
Is H35.00 billable?
Yes, but H35.00 is an unspecified code. H35.00 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, H35.00 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 H35.00 — the more specific alternatives are listed below.
H35.00 at a glance
| Code | H35.00 |
|---|---|
| Description | Unspecified background retinopathy |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does H35.00 group to?
H35.00 sits in MDC 02 and helps define the logic of 2 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 124Other Disorders of the Eye with MCC or Thrombolytic Agentmedical
- 125Other Disorders of the Eye without MCCmedical
How is H35.00 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to H35.00. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Retinopathy (background)
- Sclerosis, sclerotic › retina
Excludes2 — not included here — inherited from Chapter 7
The conditions below are not part of H35.00, but a patient may have both at the same time. When documentation supports it, H35.00 and the excluded code may both be reported.
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- diabetes mellitus related eye conditions (E09.3-, E10.3-, E11.3-, E13.3-)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury (trauma) of eye and orbit (S05.-)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
- syphilis related eye disorders (A50.01, A50.3-, A51.43, A52.71)
Excludes2 — not included here — inherited from H35
The conditions below are not part of H35.00, but a patient may have both at the same time. When documentation supports it, H35.00 and the excluded code may both be reported.
Code also — inherited from H35.0
Two codes may be needed to describe the condition fully. Whether H35.00 is sequenced first depends on the reason for the encounter.
- any associated hypertension (I10)
How long has H35.00 existed?
H35.00 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.
Which conditions are coded to H35.00?
What other codes are in the H35.0 family? (8)
- H35.01Changes in retinal vascular appearancenot billable
- H35.02Exudative retinopathynot billable
- H35.03Hypertensive retinopathynot billable
- H35.04Retinal micro-aneurysms, unspecifiednot billable
- H35.05Retinal neovascularization, unspecifiednot billable
- H35.06Retinal vasculitisnot billable
- H35.07Retinal telangiectasisnot billable
- H35.09Other intraretinal microvascular abnormalities