J01.21

Billable

ChapterJ00–J99

Ranksubcategory

Official Description

Acute recurrent ethmoidal sinusitis

Metadata & Insights

•2026 ICD-10-CM Edition - Effective October 1, 2025.
•Billable/specific code (valid for reimbursement).
•Chapter 10: Diseases of the Respiratory System (J00-J99).

General instructions are available for the parent sections:

View CH10 Notes View J00-J06 Notes View J01 Notes

Clinical Hierarchy

CH10Diseases of the respiratory system (J00-J99)

J00-J06Acute upper respiratory infections (J00-J06)

J01Acute sinusitis

J01.2Acute ethmoidal sinusitis

J01.21Acute recurrent ethmoidal sinusitis

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to J01.21:

categoryJ01

Acute sinusitis

View context instructions

blockJ00-J06

Acute upper respiratory infections (J00-J06)

View context instructions

chapterCH10

Diseases of the respiratory system (J00-J99)

View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to J01.21. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

2 raw paths

Sinusitis (accessory) (chronic) (hyperplastic) (nasal) (nonpurulent) (purulent)2 unique routes

recurrent→J01.21

recurrent→J01.21

MS-DRG Classification

2026 v43.1

This code is grouped within the following Diagnosis Related Group(s) for clinical reimbursement:

DRG 152

Otitis Media and URI with MCC

DRG 153

Otitis Media and URI without MCC

Cross Reference

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