2027 ICD-10-CM Diagnosis Code Q30.1Agenesis and underdevelopment of nose

ICD-10-CM Codes›Q00-Q99›Q30-Q34›Q30

ICD-10-CM Q30.1
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

Q30.1 is a billable ICD-10-CM diagnosis code for agenesis and underdevelopment of nose. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 154 through 156. The code is exempt from POA reporting. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Respiratory congenital malformations.

Code Identity

ICD-10-CM Code
Q30.1
Billable Status
Yes — Valid for Submission
Code Describes
Agenesis and underdevelopment of nose
Short Description
Agenesis and underdevelopment of nose
Same as the full description in the CMS dataset.
Parent Code
Q30
Congenital malformations of nose

Code Classification

ChapterQ00-Q99Congenital malformations, deformations and chromosomal abnormalities
SectionQ30-Q34Congenital malformations of the respiratory system
CategoryQ30Congenital malformations of nose
This CodeQ30.1Agenesis and underdevelopment of nose

Present on Admission (POA)Billing

Q30.1 is exempt from POA reporting on inpatient claims to general acute care hospitals. Review the other POA exempt codes in Congenital malformations of the respiratory system (Q30-Q34).

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Congenital absence of nasal turbinate
  • Congenital absence of nose
  • Congenital anomaly of nasal bone
  • Congenital anomaly of nasal turbinate
  • Congenital cleft nose
  • Congenital deformity of nose
  • Congenital hypoplasia of apex of nose
  • Congenital hypoplasia of bridge of nose
  • Congenital hypoplasia of nasal bone
  • Congenital hypoplasia of nasal septum
  • Congenital hypoplasia of nasal turbinate
  • Congenital hypoplasia of nose
  • Congenital underdevelopment of alar of nose
  • Hypoplasia and coloboma of alar cartilage with telecanthus syndrome
  • Hypoplasia of eye
  • Hyposmia, nasal and ocular hypoplasia, hypogonadotropic hypogonadism syndrome
  • Structural abnormality of nasal alar
  • Structural abnormality of tip of nose
  • Telecanthus
  • Underdevelopment of nose

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to Q30.1: its own notes plus those printed at Q30 and Chapter 17. A note printed at a category, block or chapter applies to every code under it.

Applicable To

Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.

  • Congenital absent of nose

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

From Q30 Congenital malformations of nose applies to 6 codes
  • congenital deviation of nasal septum (Q67.4)

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Chapter 17 (Q00-QA1) Congenital malformations, deformations and chromosomal abnormalities applies to 900 codes
  • inborn errors of metabolism (E70-E88)

Notes

General instructions on how these codes are used.

From Chapter 17 (Q00-QA1) Congenital malformations, deformations and chromosomal abnormalities applies to 900 codes
  • Codes from this chapter are not for use on maternal records

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name Q30.1, its category, or a range that includes it.

Excludes2 1

These codes carry an Excludes2 note naming Q30.1: its condition is not part of those codes, and both may be reported when the patient has both.

  • Block Q10-Q18 Congenital malformations of eye, ear, face and neck
    congenital malformation of nose (Q30.-) names Q30.-, which includes this code

Code Also 1

These codes say Q30.1 may also be needed to fully describe the condition. The note gives no sequencing direction.

  • P28 Other respiratory conditions originating in the perinatal period
    if applicable, congenital malformations of the respiratory system (Q30-Q34) names Q30-Q34, which includes this code

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR MAL007
Respiratory congenital malformations
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Birth Defects

A birth defect is a problem that happens while a baby is developing in the mother's body. Most birth defects happen during the first 3 months of pregnancy. One out of every 33 babies in the United States is born with a birth defect.

The full article covers:

  • What are birth defects?
  • What causes birth defects?
  • Who is at risk of having a baby with birth defects?
  • How are birth defects diagnosed?
  • What are the treatments for birth defects?
  • Can birth defects be prevented?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert Q30.1 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
748.1 Nose anomaly NEC
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About Q30.1Overview

What is the ICD-10 code for agenesis and underdevelopment of nose?

The ICD-10-CM code for agenesis and underdevelopment of nose is Q30.1 (sometimes written as Q301). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is Q30.1 (Congenital malformations of nose) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report agenesis and underdevelopment of nose on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does Q30.1 group to?

When agenesis and underdevelopment of nose is the principal diagnosis on an inpatient stay, it groups to MS-DRG 156, 155, 154, with relative weights from 0.6656 to 1.5916 depending on complications. Higher weights mean higher Medicare reimbursement.

Is Q30.1 exempt from POA reporting?

Yes. CMS lists this code among those exempt from present on admission reporting, so hospitals do not assign a POA indicator for agenesis and underdevelopment of nose on inpatient claims. The code appears in the Congenital malformations of the respiratory system (Q30-Q34) range of the CMS exempt list.

Can Q30.1 be reported with Q67.4?

Not as a rule. The Excludes1 note at Q30, which applies to Q30.1, lists "congenital deviation of nasal septum (Q67.4)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).