2027 ICD-10-CM Diagnosis Code H59.021Cataract (lens) fragments in eye following cataract surgery, right eye
ICD-10-CM Codes›H00–H59›H59›H59
- Billable — Valid for Submission
- Not Chronic
H59.021 is a billable ICD-10-CM diagnosis code for cataract (lens) fragments in eye following cataract surgery, right eye. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 124 through 125. Coders also document this condition as cataract lens fragments in vitreous of eye due to and following cataract surgery. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Postprocedural or postoperative eye complication.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Cataract lens fragments in vitreous of eye due to and following cataract surgery
- Cataract lens fragments in vitreous of right eye due to and following cataract surgery
- Disorder of right eye following cataract surgery
- Retained lens matter in vitreous
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to H59.021: its own notes plus those printed at H59 and Chapter 7. A note printed at a category, block or chapter applies to every code under it.
Excludes1
Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.
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.
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- diabetes mellitus related eye conditions (E09.3-, E10.3-, E11.3-, E13.3-)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury (trauma) of eye and orbit (S05.-)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
- syphilis related eye disorders (A50.01, A50.3-, A51.43, A52.71)
Notes
General instructions on how these codes are used.
- Use an external cause code following the code for the eye condition, if applicable, to identify the cause of the eye condition
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name H59.021, its category, or a range that includes it.
Excludes1 1
These codes carry an Excludes1 note naming H59.021: they are not reported together with it, unless the two conditions are unrelated.
Excludes2 2
These codes carry an Excludes2 note naming H59.021: its condition is not part of those codes, and both may be reported when the patient has both.
- Block T80-T88 Complications of surgical and medical care, not elsewhere classifiedintraoperative 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.-) names H59.-, which includes this code
- T81 Complications of procedures, not elsewhere classifiedintraoperative and postprocedural complications of specific body system (D78.-, E36.-, E89.-, G97.3-, G97.4, H59.3-, H59.-, H95.2-, H95.3, I97.4-, I97.5, J95, K91.-, L76.-, M96.-, N99.-) names H59.-, which includes this code
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
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 H59.021 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About H59.021Overview
What is the ICD-10 code for cataract (lens) fragments in eye following cataract surgery, right eye?
The ICD-10-CM code for cataract (lens) fragments in eye following cataract surgery, right eye is H59.021 (sometimes written as H59021). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is H59.021 (Cataract (lens) fragments in eye following cataract surgery) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report cataract (lens) fragments in eye following cataract surgery, right eye on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does H59.021 group to?
When cataract (lens) fragments in eye following cataract surgery, right eye is the principal diagnosis on an inpatient stay, it groups to MS-DRG 125, 124, with relative weights from 0.7699 to 1.2470 depending on complications. Higher weights mean higher Medicare reimbursement.
Can H59.021 be reported with T85.2?
Not as a rule. The Excludes1 note at H59, which applies to H59.021, lists "mechanical complication of intraocular lens (T85.2)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).
What is the ICD-9 equivalent of H59.021?
Under the General Equivalence Mappings, cataract (lens) fragments in eye following cataract surgery, right eye converts to ICD-9-CM 998.82 (ctrct frgmt frm ctr surg). The mapping is approximate, so confirm the match fits the documentation.
