Q78.2 ICD-10-CM Code: Osteopetrosis

Q78.2 is the billable ICD-10-CM code for “Osteopetrosis” in the FY 2027 U.S. code set, effective Oct 1, 2026.

Official description

Q78.2

Osteopetrosis

ICD-10-CM diagnosis code · United States clinical modification

Where Q78.2 sits

  1. 1

    Chapter 17

    Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA1)

  2. 2

    Section

    Congenital malformations and deformations of the musculoskeletal system (Q65-Q79)

  3. 3

    Category Q78

    Other osteochondrodysplasias

  4. 4

    Code Q78.2

    Osteopetrosis

Notes for this code

Inclusion terms

  • Albers-Schönberg syndrome
  • Osteosclerosis NOS

Code first

No “code first” instruction is listed for Q78.2.

Use additional code

No “use additional code” instruction is listed for Q78.2.

Excludes1

Conditions that should not be reported together with this code.

No Excludes1 note is listed for Q78.2.

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for Q78.2.

Source and release

Data release
U.S. ICD-10-CM · FY 2027
Effective date
Oct 1, 2026

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 Q78.2 mean?

Q78.2 is the FY 2027 U.S. ICD-10-CM code for “Osteopetrosis.”

Is Q78.2 a billable or specific ICD-10-CM code?

Yes. In the FY 2027 reference data used on this page, Q78.2 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 Q78.2 located in ICD-10-CM?

Q78.2 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 Q78, Other osteochondrodysplasias.

What coding notes are listed for Q78.2?

Its listed inclusion terms are Albers-Schönberg syndrome; Osteosclerosis NOS. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.