ICD-10-CM H21.81 is the diagnosis code for Floppy iris syndrome. This code falls under the section "Disorders of sclera, cornea, iris and ciliary body" within Chapter 7 — Diseases of the eye and adnexa (H00-H59). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Understanding where H21.81 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, H21.81 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
H21.81 is the ICD-10-CM diagnosis code for "Floppy iris syndrome". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of H21.81 is H21.8 ("Other specified disorders of iris and ciliary body"). H21.81 provides a more specific classification within this category.
H21.81 is located in Section H15-H22 — "Disorders of sclera, cornea, iris and ciliary body" within Chapter 7 of the ICD-10-CM Tabular List.
Use H21.81 when the patients documented diagnosis matches "Floppy iris syndrome" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Floppy iris syndrome is H21.81.
Yes, H21.81 can be used as a primary diagnosis code since it is billable and specific.
H21.81 is in Chapter 7 of the ICD-10-CM Tabular List.
Yes, H21.81 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.