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ICD-10-CM 2027 diagnosis code

K14.3Hypertrophy of tongue papillae

✓ Billable / specific

K14.3 is a valid, billable ICD-10-CM code for hypertrophy of tongue papillae. 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 Glossophytia, ICD-10 code for Coated tongue, ICD-10 code for Glossotrichia, ICD-10 code for Hairy black tongue.

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 K14.3

K14.3 is the ICD-10-CM diagnosis code for hypertrophy of tongue papillae. It belongs to category K14 (diseases of tongue), block K00-K14 (diseases of oral cavity and salivary glands) and chapter 11 (diseases of the digestive 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 K14 (diseases of tongue), K14.3 is specifically for hypertrophy of tongue papillae. Related codes cover glossitis (K14.0), Geographic tongue (K14.1), median rhomboid glossitis (K14.2), atrophy of tongue papillae (K14.4), Plicated tongue (K14.5), Glossodynia (K14.6), other diseases of tongue (K14.8) and disease of tongue, unspecified (K14.9).

Use an additional code to identify: alcohol abuse and dependence (F10.-), exposure to environmental tobacco smoke (Z77.22), history of tobacco dependence (Z87.891), occupational exposure to environmental tobacco smoke (Z57.31), tobacco dependence (F17.-) and 1 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 157 (Dental and Oral Diseases with MCC, relative weight 1.809), DRG 158 (Dental and Oral Diseases with CC, relative weight 0.9366) and DRG 159 (Dental and Oral Diseases without CC/MCC, relative weight 0.6893), 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 529.3 (hypertrophy of tongue papillae).

Coding notes

Applicable toConditions and synonyms classified to this code
  • Black hairy tongue
  • Coated tongue
  • Hypertrophy of foliate papillae
  • Lingua villosa nigra

Notes that apply from higher levels

Instructions written at a parent level also apply to K14.3.

› From K14 Diseases of tongue
Excludes2
  • erythroplakia (K13.29)
  • focal epithelial hyperplasia (K13.29)
  • leukoedema of tongue (K13.29)
  • leukoplakia of tongue (K13.21)
  • hairy leukoplakia (K13.3)
  • macroglossia (congenital) (Q38.2)
  • submucous fibrosis of tongue (K13.5)
Use additional code
  • code to identify:
  • alcohol abuse and dependence (F10.-)
  • exposure to environmental tobacco smoke (Z77.22)
  • history of tobacco dependence (Z87.891)
  • occupational exposure to environmental tobacco smoke (Z57.31)
  • tobacco dependence (F17.-)
  • tobacco use (Z72.0)

Broader instructions also apply from Chapter 11: Diseases of the digestive system.

Alphabetic index entries

10 entries

Terms in the official ICD-10-CM index that lead to K14.3.

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.

ICD-9-CM equivalent

Converter →
  • 529.3Hypertrophy of tongue papillaeexact

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about K14.3

Is K14.3 billable?

Yes. K14.3 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can K14.3 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict K14.3 as a principal diagnosis.

Is K14.3 a CC or MCC?

No. K14.3 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does K14.3 group to?

K14.3 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 157 (Dental and Oral Diseases with MCC), MS-DRG 158 (Dental and Oral Diseases with CC) and MS-DRG 159 (Dental and Oral Diseases without CC/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 K14.3?

The CMS General Equivalence Mappings map K14.3 to ICD-9-CM 529.3.