Q74.1
Billable

Congenital malformation of knee

Billable / Specific Code

What is Congenital malformation of knee?

ICD-10-CM Q74.1 is the diagnosis code for Congenital malformation of knee. This code falls under the section "Congenital malformations and deformations of the musculoskeletal system" within Chapter 17 — Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.

💡 Inclusions
⛔ Excludes1

Coding Guidelines for Q74.1

✅ This Code Includes

  • Congenital absence of patella
  • Congenital dislocation of patella
  • Congenital genu valgum
  • Congenital genu varum
  • Rudimentary patella

⛔ Type 1 Excludes (Never code together)

The following conditions should never be coded at the same time as Q74.1. They are mutually exclusive:

  • congenital dislocation of knee (Q68.2)
  • congenital genu recurvatum (Q68.2)
  • nail patella syndrome (Q87.2)

ICD-10-CM Code Hierarchy

Understanding where Q74.1 sits in the ICD-10-CM classification helps ensure proper coding:

Related Codes

Frequently Asked Questions

Is Q74.1 a billable ICD-10-CM code?

Yes, Q74.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

What does Q74.1 mean?

Q74.1 is the ICD-10-CM diagnosis code for "Congenital malformation of knee". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.

What is the parent code of Q74.1?

The parent code of Q74.1 is Q74 ("Other congenital malformations of limb(s)"). Q74.1 provides a more specific classification within this category.

What section is Q74.1 in?

Q74.1 is located in Section Q65-Q79 — "Congenital malformations and deformations of the musculoskeletal system" within Chapter 17 of the ICD-10-CM Tabular List.

When should I use Q74.1?

Use Q74.1 when the patients documented diagnosis matches "Congenital malformation of knee" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.

People Also Ask

What is the ICD-10 code for Congenital malformation of knee?

The ICD-10-CM code for Congenital malformation of knee is Q74.1.

Can Q74.1 be used for primary diagnosis?

Yes, Q74.1 can be used as a primary diagnosis code since it is billable and specific.

What chapter is Q74.1 in?

Q74.1 is in Chapter 17 of the ICD-10-CM Tabular List.

What conditions are excluded from Q74.1?

Type 1 Excludes for Q74.1 include: congenital dislocation of knee (Q68.2); congenital genu recurvatum (Q68.2); nail patella syndrome (Q87.2).

Is Q74.1 valid for 2026?

Yes, Q74.1 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.

See Also

← PreviousQ74.0Other congenital malformations of upper limb(s), including shoulder girdleNext →Q74.2Other congenital malformations of lower limb(s), including pelvic girdle
Code Details
Q74.1
Congenital malformation of knee
Billable / Specific Code
17 — Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0)
Q65-Q79 — Congenital malformations and deformations of the musculoskeletal system
2026 ICD-10-CM