ICD-10-CM 2027 diagnosis code

J34.821External nasal valve collapse

Not billable — use a more specific code

J34.821 is a header code, so it can't be reported by itself. Choose one of the 3 more specific codes beneath it.

Code last changed in FY2025 (effective October 1, 2024). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About J34.821

J34.821 is the ICD-10-CM diagnosis code for external nasal valve collapse. It belongs to category J34 (other and unspecified disorders of nose and nasal sinuses), block J30-J39 (other diseases of upper respiratory tract) and chapter 10 (diseases of the respiratory system). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.

Within J34.82 (nasal valve collapse), J34.821 is specifically for external nasal valve collapse. Related codes cover internal nasal valve collapse (J34.820) and unspecified (J34.829).

To report this condition, pick the subcode that matches the documentation: J34.8210 (unspecified), J34.8211 (static) and J34.8212 (dynamic).

It was added in FY2025, effective October 1, 2024.

Specific codes under J34.821

Notes that apply from higher levels

Instructions written at a parent level also apply to J34.821.

› From J34.82 Nasal valve collapse

Code first

underlying cause, such as:
deviated nasal septum (J34.2)

› From J34 Other and unspecified disorders of nose and nasal sinuses

Excludes2

varicose ulcer of nasal septum (I86.8)

Broader instructions also apply from Chapter 10: Diseases of the respiratory system.

Code history

2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027

FY2025 (effective 10/1/2024): Added
No changes since FY2025.

Common questions about J34.821

Is J34.821 billable?: No. J34.821 is a header code. Report one of its more specific subcodes instead.