ICD-10-CM 2027 diagnosis code
T85.830AHemorrhage due to nervous system prosthetic devices, implants and grafts, initial encounter
T85.830A is a valid, billable ICD-10-CM code for hemorrhage due to nervous system prosthetic devices, implants and grafts, initial encounter. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Hemorrhage due to nervous system prosth dev/grft, init
Code last changed in FY2017 (effective October 1, 2016). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About T85.830A
T85.830A is the ICD-10-CM diagnosis code for hemorrhage due to nervous system prosthetic devices, implants and grafts, initial encounter. It belongs to category T85 (complications of other internal prosthetic devices, implants and grafts), block T80-T88 (complications of surgical and medical care, not elsewhere classified) 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 "A" means initial encounter: use it while the patient is receiving active treatment for the condition.
As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.
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 was added in FY2017, effective October 1, 2016.
Before ICD-10, this condition was coded in ICD-9-CM as 996.75 (other complications due to nervous system device, implant, and graft).
7th character
Ainitial encounter
CC/MCC status for this injury by encounter: CC for A, D; Neither CC nor MCC for S.
Other encounter types for T85.830:
Notes that apply from higher levels
Instructions written at a parent level also apply to T85.830A.
› From T85 Complications of other internal prosthetic devices, implants and grafts
- failure and rejection of transplanted organs and tissue (T86.-)
Broader instructions also apply from T80-T88 Complications of surgical and medical care, not elsewhere classified 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 →- 996.75Other complications due to nervous system device, implant, and graftapproximate
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
- FY2017 (effective 10/1/2016): Added
- No changes since FY2017.
Common questions about T85.830A
Is T85.830A billable?
- Yes. T85.830A is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
What does the "A" at the end of T85.830A mean?
- It is the 7th character for initial encounter. Per the official guidelines, use it while the patient is receiving active treatment for the condition.
Can T85.830A be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict T85.830A as a principal diagnosis.
Is T85.830A a CC or MCC?
- T85.830A is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.
What DRG does T85.830A group to?
- T85.830A 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 T85.830A?
- The CMS General Equivalence Mappings map T85.830A to ICD-9-CM 996.75.