ICD-10-CM 2027 diagnosis code
S04.032SInjury of optic tract and pathways, left side, sequela
S04.032S is a valid, billable ICD-10-CM code for injury of optic tract and pathways, left side, sequela. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.
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 S04.032S
S04.032S is the ICD-10-CM diagnosis code for injury of optic tract and pathways, left side, sequela. 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 "S" means sequela: use it for complications or conditions that arise as a direct result of the original condition.
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 091 (Other Disorders of Nervous System with MCC, relative weight 1.7046), DRG 092 (Other Disorders of Nervous System with CC, relative weight 1.0239) and DRG 093 (Other Disorders of Nervous System without CC/MCC, relative weight 0.7783), in MDC 01 (Diseases and Disorders of the Nervous System), 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 907.1 (late effect of injury to cranial nerve).
7th character
Ssequela
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 S04.032S.
› 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 01 · Diseases and Disorders of the Nervous System
ICD-9-CM equivalent
Converter →- 907.1Late effect of injury to cranial nerveapproximate
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, sequela”
Common questions about S04.032S
Is S04.032S billable?
- Yes. S04.032S is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
What does the "S" at the end of S04.032S mean?
- It is the 7th character for sequela. Per the official guidelines, use it for complications or conditions that arise as a direct result of the original condition.
Can S04.032S be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict S04.032S as a principal diagnosis.
Is S04.032S a CC or MCC?
- No. S04.032S is neither a CC nor an MCC under MS-DRG v44.0.
What DRG does S04.032S group to?
- S04.032S is used in the MS-DRG v44.0 logic for MS-DRG 091 (Other Disorders of Nervous System with MCC), MS-DRG 092 (Other Disorders of Nervous System with CC) and MS-DRG 093 (Other Disorders of Nervous System without CC/MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.
What is the ICD-9 code for S04.032S?
- The CMS General Equivalence Mappings map S04.032S to ICD-9-CM 907.1.