Q71.42 ICD-10-CM Code: Longitudinal reduction defect of left radius
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Official description
Q71.42Longitudinal reduction defect of left radius
ICD-10-CM diagnosis code · United States clinical modification
Where Q71.42 sits
- 1
Chapter 17
Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA1)
- 2
Section
Congenital malformations and deformations of the musculoskeletal system (Q65-Q79)
- 3
Category Q71
Reduction defects of upper limb
- 4
Subcategory Q71.4
Longitudinal reduction defect of radius
- 5
Code Q71.42
Longitudinal reduction defect of left radius
Notes for this code
Inclusion terms
No inclusion terms are listed for Q71.42.
Code first
No “code first” instruction is listed for Q71.42.
Use additional code
No “use additional code” instruction is listed for Q71.42.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for Q71.42.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for Q71.42.
Source and release
- Data release
- U.S. ICD-10-CM · FY 2027
- Effective date
- Oct 1, 2026
- Publisher
- Vero Scribe Inc.
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Frequently asked questions
What does ICD-10-CM code Q71.42 mean?
Q71.42 is the FY 2027 U.S. ICD-10-CM code for “Longitudinal reduction defect of left radius.”
Is Q71.42 a billable or specific ICD-10-CM code?
Yes. In the FY 2027 reference data used on this page, Q71.42 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.
Where is Q71.42 located in ICD-10-CM?
Q71.42 is listed in Chapter 17, Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA1), within Congenital malformations and deformations of the musculoskeletal system (Q65-Q79) (Q65–Q79), under category Q71, Reduction defects of upper limb and subcategory Q71.4, Longitudinal reduction defect of radius.
What coding notes are listed for Q71.42?
No inclusion terms are listed for Q71.42 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.