H21.81

Billable code

Floppy iris syndrome

The ICD-10 code for floppy iris syndrome is H21.81.

Clinical notes

Also known as

Alternate wording, synonyms, or specific conditions that fall under this code, listed to help confirm you've picked the right one.

Intraoperative floppy iris syndrome (IFIS)

Use additional code

This code represents an underlying condition. When a related manifestation is also present, coding convention calls for an additional code to be listed after this one.

code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)

Documentation support

General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.

•If the associated manifestation or related condition noted above is also documented, an additional code should be reported alongside this one.
•As a general rule, code to the highest level of specificity supported by the documentation in the medical record.

Related codes in this category

H21.82Plateau iris syndrome (post-iridectomy) (postprocedural)
H21.89Other specified disorders of iris and ciliary body
H21.81Floppy iris syndrome

ICD-9-CM equivalent

Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.

36481

View full ICD-10 → ICD-9 crosswalk →

Associated MS-DRGs

H21.81 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.

Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.