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ICD-10-CM 2027 diagnosis code

F80.4Speech and language development delay due to hearing loss

✓ Billable / specific

F80.4 is a valid, billable ICD-10-CM code for speech and language development delay due to hearing loss. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.

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 F80.4

F80.4 is the ICD-10-CM diagnosis code for speech and language development delay due to hearing loss. It belongs to category F80 (specific developmental disorders of speech and language), block F80-F89 (pervasive and specific developmental disorders) and chapter 5 (mental, Behavioral and Neurodevelopmental disorders). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within F80 (specific developmental disorders of speech and language), F80.4 is specifically for speech and language development delay due to hearing loss. Related codes cover Phonological disorder (F80.0), Expressive language disorder (F80.1), mixed receptive-expressive language disorder (F80.2), other developmental disorders of speech and language (F80.8) and developmental disorder of speech and language, unspecified (F80.9).

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 886 (Behavioral and Developmental Disorders, relative weight 1.8678), in MDC 19 (Mental Diseases and Disorders), 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 315.34 (speech and language developmental delay due to hearing loss).

Coding notes

Code alsoTwo codes may be needed; sequencing depends on circumstances
  • type of hearing loss (H90.-, H91.-)

Notes that apply from higher levels

Instructions written at a parent level also apply to F80.4.

Broader instructions also apply from Chapter 5: Mental, Behavioral and Neurodevelopmental disorders.

Alphabetic index entries

2 entries

Terms in the official ICD-10-CM index that lead to F80.4.

Codes whose notes reference F80.4

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 19 · Mental Diseases and Disorders

ICD-9-CM equivalent

Converter →
  • 315.34Speech and language developmental delay due to hearing lossexact

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 F80.4

Is F80.4 billable?

Yes. F80.4 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can F80.4 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict F80.4 as a principal diagnosis.

Is F80.4 a CC or MCC?

No. F80.4 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does F80.4 group to?

F80.4 is used in the MS-DRG v44.0 logic for MS-DRG 886 (Behavioral and Developmental Disorders). 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 F80.4?

The CMS General Equivalence Mappings map F80.4 to ICD-9-CM 315.34.