2027 ICD-10-CM Diagnosis Code T85.29XSOther mechanical complication of intraocular lens, sequela

ICD-10-CM Codes›S00–T88›T80-T88›T85

ICD-10-CM T85.29XS
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

T85.29XS is a billable ICD-10-CM diagnosis code for other mechanical complication of intraocular lens, sequela. The 7th character S marks it as a sequela code, which reports a problem that remains after the original condition has resolved. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 922 through 923. The code is exempt from POA reporting. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Complication, sequela.

Code Identity

ICD-10-CM Code
T85.29XS
Billable Status
Yes — Valid for Submission
Code Describes
Other mechanical complication of intraocular lens, sequela
Short Description
Other mechanical complication of intraocular lens, sequela
Same as the full description in the CMS dataset.
Parent Code
T85.29
Other mechanical complication of intraocular lens

Code Classification

ChapterS00–T88Injury, poisoning and certain other consequences of external causes
SectionT80-T88Complications of surgical and medical care, not elsewhere classified
CategoryT85Complications of other internal prosthetic devices, implants and grafts
This CodeT85.29XSOther mechanical complication of intraocular lens, sequela

Present on Admission (POA)Billing

T85.29XS is exempt from POA reporting on inpatient claims to general acute care hospitals. Review the other POA exempt codes in Complications of surgical and medical care, not elsewhere classified (T80-T88).

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Deposit on intraocular lens
  • Deposit on intraocular lens of left eye
  • Deposit on intraocular lens of right eye
  • Deposits on intraocular lens obscuring vision
  • Intraocular lens intralenticular opacification
  • Malfunction of intraocular lens
  • Malfunction of left intraocular lens
  • Malfunction of right intraocular lens
  • Mechanical obstruction of intraocular lens
  • Perforation of intraocular lens
  • Protrusion of intraocular lens
  • Silicone oil droplets on intraocular lens
  • Wrong power intraocular lens
  • YAG laser pit in intraocular lens

Coding GuidelinesGuidance

The appropriate 7th character is to be added to each code from block Complications of other internal prosthetic devices, implants and grafts (T85). Use the following options for the applicable episode of care:

  • A - initial encounter
  • D - subsequent encounter
  • S - sequela

Source: ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027, published by CMS and the National Center for Health Statistics.

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to T85.29XS: its own notes plus those printed at T85, block T80-T88, and Chapter 19. A note printed at a category, block or chapter applies to every code under it.

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From T85 Complications of other internal prosthetic devices, implants and grafts applies to 288 codes
  • failure and rejection of transplanted organs and tissue (T86.-)
From Block T80-T88 Complications of surgical and medical care, not elsewhere classified applies to 1,683 codes
  • any encounters with medical care for postprocedural conditions in which no complications are present, such as:
  • artificial opening status (Z93.-)
  • closure of external stoma (Z43.-)
  • fitting and adjustment of external prosthetic device (Z44.-)
  • burns and corrosions from local applications and irradiation (T20-T32)
  • complications of surgical procedures during pregnancy, childbirth and the puerperium (O00-O9A)
  • mechanical complication of respirator [ventilator] (J95.850)
  • poisoning and toxic effects of drugs and chemicals (T36-T65 with fifth or sixth character 1-4 or 6)
  • postprocedural fever (R50.82)
  • specified complications classified elsewhere, such as:
  • cerebrospinal fluid leak from spinal puncture (G97.0)
  • colostomy malfunction (K94.0-)
  • disorders of fluid and electrolyte imbalance (E86-E87)
  • functional disturbances following cardiac surgery (I97.0-I97.1)
  • intraoperative and postprocedural complications of specified body systems (D78.-, E36.-, E89.-, G97.3-, G97.4, H59.3-, H59.-, H95.2-, H95.3, I97.4-, I97.5, J95.6-, J95.7, K91.6-, L76.-, M96.-, N99.-)
  • ostomy complications (J95.0-, K94.-, N99.5-)
  • postgastric surgery syndromes (K91.1)
  • postlaminectomy syndrome NEC (M96.1)
  • postmastectomy lymphedema syndrome (I97.2)
  • postsurgical blind-loop syndrome (K91.2)
  • ventilator associated pneumonia (J95.851)
From Chapter 19 (S00-T88) Injury, poisoning and certain other consequences of external causes applies to 41,187 codes

Use Additional Code

Add a second code, after this one, to fully describe the condition.

From Block T80-T88 Complications of surgical and medical care, not elsewhere classified applies to 1,683 codes
  • code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
  • code(s) to identify the specified condition resulting from the complication
  • code to identify devices involved and details of circumstances (Y62-Y82)
From Chapter 19 (S00-T88) Injury, poisoning and certain other consequences of external causes applies to 41,187 codes
  • code to identify any retained foreign body, if applicable (Z18.-)

Notes

General instructions on how these codes are used.

From Chapter 19 (S00-T88) Injury, poisoning and certain other consequences of external causes applies to 41,187 codes
  • Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
  • The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.

7th Character

Every code in the category takes a 7th character from the listed values, with the placeholder X filling any empty positions before it.

From T85 Complications of other internal prosthetic devices, implants and grafts applies to 288 codes
  • The appropriate 7th character is to be added to each code from category T85
Values for category T85 Encounter: Initial, Subsequent, Sequela
  • Ainitial encounter
  • Dsubsequent encounter
  • Ssequela this code

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name T85.29XS, its category, or a range that includes it.

Excludes1 2

These codes carry an Excludes1 note naming T85.29XS: they are not reported together with it, unless the two conditions are unrelated.

  • H27 Other disorders of lens
    mechanical complications of intraocular lens implant (T85.2) names T85.2, which includes this code
  • H59 Intraoperative and postprocedural complications and disorders of eye and adnexa, not elsewhere classified
    mechanical complication of intraocular lens (T85.2) names T85.2, which includes this code

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR INJ076
Complication, sequela
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Cataract

A cataract is a clouding of the clear lens inside your eye. This cloudiness blocks light from reaching the back of the eye, making it harder to see clearly. A cataract can affect one or both eyes, but it doesn't spread from one eye to the other.

The full article covers:

  • What are cataracts?
  • What causes cataracts?
  • Who is more likely to develop cataracts?
  • What are the symptoms of cataracts?
  • How are cataracts diagnosed?
  • How are cataracts treated?
  • Can cataracts be prevented?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert T85.29XS to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
909.3 Late eff surg/med compl
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About T85.29XSOverview

What is the ICD-10 code for other mechanical complication of intraocular lens, sequela?

The ICD-10-CM code for other mechanical complication of intraocular lens, sequela is T85.29XS (sometimes written as T8529XS). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is T85.29XS (Other mechanical complication of intraocular lens) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report other mechanical complication of intraocular lens, sequela on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What does the 7th character S in T85.29XS mean?

The final character S makes this a sequela code: it reports a lingering problem that remains after the other mechanical complication of intraocular lens itself has resolved, not the original event.

What MS-DRG does T85.29XS group to?

When other mechanical complication of intraocular lens, sequela is the principal diagnosis on an inpatient stay, it groups to MS-DRG 923, 922, with relative weights from 0.9980 to 1.6248 depending on complications. Higher weights mean higher Medicare reimbursement.

Is T85.29XS exempt from POA reporting?

Yes. CMS lists this code among those exempt from present on admission reporting, so hospitals do not assign a POA indicator for other mechanical complication of intraocular lens, sequela on inpatient claims. The code appears in the Complications of surgical and medical care, not elsewhere classified (T80-T88) range of the CMS exempt list.