ICD-10-CM 2027 diagnosis code
S04.032DInjury of optic tract and pathways, left side, subsequent encounter
S04.032D is a valid, billable ICD-10-CM code for injury of optic tract and pathways, left side, subsequent encounter. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Injury of optic tract and pathways, left side, subs
Code last changed in FY2018 (effective October 1, 2017). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About S04.032D
S04.032D is the ICD-10-CM diagnosis code for injury of optic tract and pathways, left side, subsequent encounter. It belongs to category S04 (injury of cranial nerve), block S00-S09 (injuries to the head) and chapter 19 (injury, poisoning and certain other consequences of external causes). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.
The 7th character "D" means subsequent encounter: use it for encounters after active treatment, while the patient is healing or recovering.
Code first: any associated intracranial injury (S06.-).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 949 (Aftercare with CC/MCC, relative weight 1.123) and DRG 950 (Aftercare without CC/MCC, relative weight 0.7664), in MDC 23 (Factors Influencing Health Status and Other Contacts with Health Services), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
It is exempt from present-on-admission (POA) reporting, so no POA indicator is required.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015, and changed in FY2018 (title revised).
Before ICD-10, this condition was coded in ICD-9-CM as V58.89 (other specified aftercare).
7th character
Dsubsequent encounter
CC/MCC status for this injury by encounter: CC for A; Neither CC nor MCC for D, S.
Other encounter types for S04.032:
Notes that apply from higher levels
Instructions written at a parent level also apply to S04.032D.
› From S04 Injury of cranial nerve
Broader instructions also apply from S00-S09 Injuries to the head and Chapter 19: Injury, poisoning and certain other consequences of external causes.
MS-DRG v44.0 grouping
All DRGs →Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.
MDC 23 · Factors Influencing Health Status and Other Contacts with Health Services
ICD-9-CM equivalent
Converter →- V58.89Other specified aftercareapproximate
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- FY2018 (effective 10/1/2017): Title revised — was “Injury of optic tract and pathways, left eye, subsequent encounter”
Common questions about S04.032D
Is S04.032D billable?
- Yes. S04.032D is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
What does the "D" at the end of S04.032D mean?
- It is the 7th character for subsequent encounter. Per the official guidelines, use it for encounters after active treatment, while the patient is healing or recovering.
Can S04.032D be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict S04.032D as a principal diagnosis.
Is S04.032D a CC or MCC?
- No. S04.032D is neither a CC nor an MCC under MS-DRG v44.0.
What DRG does S04.032D group to?
- S04.032D is used in the MS-DRG v44.0 logic for MS-DRG 949 (Aftercare with CC/MCC) and MS-DRG 950 (Aftercare without CC/MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.