ICD-10-CM 2027 diagnosis code
J37.0Chronic laryngitis
J37.0 is a valid, billable ICD-10-CM code for chronic laryngitis. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.
Looking up by condition? See ICD-10 code for Türck's trachoma.
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About J37.0
J37.0 is the ICD-10-CM diagnosis code for chronic laryngitis. It belongs to category J37 (chronic laryngitis and laryngotracheitis), block J30-J39 (other diseases of upper respiratory tract) and chapter 10 (diseases of the respiratory system). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.
Within J37 (chronic laryngitis and laryngotracheitis), J37.0 is specifically for chronic laryngitis. Related codes cover laryngotracheitis (J37.1).
The conditions in its Excludes2 note aren't part of J37.0, but may be coded alongside it if the patient has both: acute laryngitis (J04.0) and obstructive (acute) laryngitis (J05.0).
Use an additional code to identify: exposure to environmental tobacco smoke (Z77.22), exposure to tobacco smoke in the perinatal period (P96.81), history of tobacco dependence (Z87.891), infectious agent (B95-B97), occupational exposure to environmental tobacco smoke (Z57.31) and 2 more.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 011 (Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with MCC, relative weight 5.6154), DRG 012 (Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with CC, relative weight 4.381), DRG 013 (Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy without CC/MCC, relative weight 2.7307), DRG 152 (Otitis Media and URI with MCC, relative weight 1.1151) and DRG 153 (Otitis Media and URI without MCC, relative weight 0.7421), in Pre-MDC and MDC 03 (Diseases and Disorders of the Ear, Nose, Mouth and Throat), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Before ICD-10, this condition was coded in ICD-9-CM as 476.0 (chronic laryngitis).
Coding notes
Notes that apply from higher levels
Instructions written at a parent level also apply to J37.0.
› From J37 Chronic laryngitis and laryngotracheitis
Broader instructions also apply from Chapter 10: Diseases of the respiratory system.
Alphabetic index entries
15 entriesTerms in the official ICD-10-CM index that lead to J37.0.
- Angina (attack) (cardiac) (chest) (heart) (pectoris) (syndrome) (vasomotor) › exudative, chronic
- Atrophy, atrophic (of) › laryngitis, infective
- Catarrh, catarrhal (acute) (febrile) (infectious) (inflammation) › larynx, chronic
- Congestion, congestive › glottis
- Congestion, congestive › larynx
- Epiglottitis, epiglottiditis (acute) › chronic
- Laryngitis (acute) (edematous) (fibrinous) (infective) (infiltrative) (malignant) (membranous) (phlegmonous) (pneumococcal) (pseudomembranous) (septic) (subglottic) (suppurative) (ulcerative) › atrophic
- Laryngitis (acute) (edematous) (fibrinous) (infective) (infiltrative) (malignant) (membranous) (phlegmonous) (pneumococcal) (pseudomembranous) (septic) (subglottic) (suppurative) (ulcerative) › catarrhal
- Laryngitis (acute) (edematous) (fibrinous) (infective) (infiltrative) (malignant) (membranous) (phlegmonous) (pneumococcal) (pseudomembranous) (septic) (subglottic) (suppurative) (ulcerative) › chronic
- Laryngitis (acute) (edematous) (fibrinous) (infective) (infiltrative) (malignant) (membranous) (phlegmonous) (pneumococcal) (pseudomembranous) (septic) (subglottic) (suppurative) (ulcerative) › hypertrophic
- Laryngitis (acute) (edematous) (fibrinous) (infective) (infiltrative) (malignant) (membranous) (phlegmonous) (pneumococcal) (pseudomembranous) (septic) (subglottic) (suppurative) (ulcerative) › sicca
- Laryngopharyngitis (acute) › chronic
- Pharyngolaryngitis (acute) › chronic
- Trachoma, trachomatous › Türck's
- Türck's trachoma
Codes whose notes reference J37.0
MS-DRG v44.0 grouping
All DRGs →Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.
MDC PRE · Pre-MDC
MDC 03 · Diseases and Disorders of the Ear, Nose, Mouth and Throat
ICD-9-CM equivalent
Converter →- 476.0Chronic laryngitisexact
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about J37.0
Is J37.0 billable?
- Yes. J37.0 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can J37.0 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict J37.0 as a principal diagnosis.
Is J37.0 a CC or MCC?
- No. J37.0 is neither a CC nor an MCC under MS-DRG v44.0.
What DRG does J37.0 group to?
- J37.0 is used in the MS-DRG v44.0 logic for MS-DRG 011 (Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with MCC), MS-DRG 012 (Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with CC), MS-DRG 013 (Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy without CC/MCC), MS-DRG 152 (Otitis Media and URI with MCC) and MS-DRG 153 (Otitis Media and URI without MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.
What is the ICD-9 code for J37.0?
- The CMS General Equivalence Mappings map J37.0 to ICD-9-CM 476.0.