E08.3521 — Diabetes mellitus due to underlying condition with proliferative diabetic retinopathy with traction retinal detachment involving the macula, right eye
Is E08.3521 billable?
Yes — E08.3521 is billable for FY2027. E08.3521 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. E08.3521 may be submitted for encounters from October 1, 2026 through September 30, 2027.
E08.3521 at a glance
| Code | E08.3521 |
|---|---|
| Description | Diabetes mellitus due to underlying condition with proliferative diabetic retinopathy with traction retinal detachment involving the macula, right eye |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
| 7th character "1" | right eye |
What does the 7th character "1" mean in E08.3521?
In E08.3521, the 7th character 1 means right eye. The 7th character is required for E08.3521 to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
What Medicare edits apply to E08.3521?
The Medicare Code Editor screens inpatient claims before they are grouped. These edits name E08.3521 directly.
This code describes a manifestation of an underlying disease. The underlying condition must be sequenced before it, so it can never be the principal or first-listed diagnosis.
Which MS-DRGs does E08.3521 group to?
E08.3521 sits in MDC Pre 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.
- 008Simultaneous Pancreas, Islet Cell and Kidney Transplantsurgical
How is E08.3521 listed in the Alphabetic Index?
The Alphabetic Index lists these routes under E08.352, the nearest indexed parent of E08.3521. Use them to find the family, then select the specific code.
- Diabetes, diabetic › due to underlying condition › with › retinopathy › proliferative › with › traction retinal detachment involving the macula (mellitus) (sugar)
Excludes1 — never code together — inherited from Chapter 4
The conditions below can never be reported together with E08.3521 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- transitory endocrine and metabolic disorders specific to newborn (P70-P74)
Excludes1 — never code together — inherited from E08
The conditions below can never be reported together with E08.3521 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- drug or chemical induced diabetes mellitus (E09.-)
- gestational diabetes (O24.4-)
- neonatal diabetes mellitus (P70.2)
- postpancreatectomy diabetes mellitus (E13.-)
- postprocedural diabetes mellitus (E13.-)
- secondary diabetes mellitus NEC (E13.-)
- type 1 diabetes mellitus (E10.-)
- type 2 diabetes mellitus (E11.-)
Code first — inherited from E08
The underlying condition below must be sequenced before E08.3521. E08.3521 describes a manifestation and cannot be the principal or first-listed diagnosis.
Use additional code — inherited from E08
Report an additional code alongside E08.3521 to fully describe the condition. E08.3521 is sequenced first.
How long has E08.3521 existed?
E08.3521 first appears in FY2018 (FY2017 is not available, so it may have appeared then).
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.