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ICD-10-CM 2027 diagnosis code

Q37.3Cleft soft palate with unilateral cleft lip

✓ Billable / specificPOA exempt

Q37.3 is a valid, billable ICD-10-CM code for cleft soft palate with unilateral cleft lip. 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 Q37.3

Q37.3 is the ICD-10-CM diagnosis code for cleft soft palate with unilateral cleft lip. It belongs to category Q37 (cleft palate with cleft lip), block Q35-Q37 (cleft lip and cleft palate) and chapter 17 (congenital malformations, deformations, chromosomal abnormalities, and genetic 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 Q37 (cleft palate with cleft lip), Q37.3 is specifically for cleft soft palate with unilateral cleft lip. Related codes cover cleft hard palate with bilateral cleft lip (Q37.0), cleft hard palate with unilateral cleft lip (Q37.1), cleft soft palate with bilateral cleft lip (Q37.2), cleft hard and soft palate with bilateral cleft lip (Q37.4), cleft hard and soft palate with unilateral cleft lip (Q37.5), unspecified cleft palate with bilateral cleft lip (Q37.8) and unspecified cleft palate with unilateral cleft lip (Q37.9).

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 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 is exempt from present-on-admission (POA) reporting, so no POA indicator is required.

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 749.21 (cleft palate with cleft lip, unilateral, complete) and 749.22 (cleft palate with cleft lip, unilateral, incomplete).

Coding notes

Applicable toConditions and synonyms classified to this code
  • Cleft soft palate with cleft lip NOS

Notes that apply from higher levels

Instructions written at a parent level also apply to Q37.3.

› From Q37 Cleft palate with cleft lip
Includes
  • cheilopalatoschisis

Broader instructions also apply from Q35-Q37 Cleft lip and cleft palate and Chapter 17: Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders.

Alphabetic index entries

2 entries

Terms in the official ICD-10-CM index that lead to Q37.3.

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 →
  • 749.21Cleft palate with cleft lip, unilateral, completeapproximate
  • 749.22Cleft palate with cleft lip, unilateral, incompleteapproximate

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 Q37.3

Is Q37.3 billable?

Yes. Q37.3 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can Q37.3 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict Q37.3 as a principal diagnosis.

Is Q37.3 a CC or MCC?

No. Q37.3 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does Q37.3 group to?

Q37.3 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 Q37.3?

The CMS General Equivalence Mappings map Q37.3 to ICD-9-CM 749.21 and 749.22.