M24.56 – Contracture, knee

ICD-10-CM 2027 diagnosis code · Other joint disorders

Non-billable header

ICD-10-CM code M24.56

Code: M24.56 (claims format: M2456)
Description: Contracture, knee
Billable: No – use a more specific code below
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 13. Diseases of the musculoskeletal system and connective tissue (M00-M99)
Block: M20-M25 Other joint disorders
Parent codes: M24 › M24.5

Billable codes under M24.56

M24.56 is a header code and cannot be used on claims. Choose the most specific code:

M24.561 – Contracture, right kneeBillable
M24.562 – Contracture, left kneeBillable
M24.569 – Contracture, unspecified kneeBillable

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

M24 – Other specific joint derangements

Excludes1 (not coded here):

current injury - see injury of joint by body region

Excludes2 (not included here):

ganglion (M67.4)
snapping knee (M23.8-)
temporomandibular joint disorders (M26.6-)

M24.5 – Contracture of joint

Excludes1 (not coded here):

contracture of muscle without contracture of joint (M62.4-)
contracture of tendon (sheath) without contracture of joint (M62.4-)
Dupuytren's contracture (M72.0)

Excludes2 (not included here):

acquired deformities of limbs (M20-M21)

Block M20-M25

Excludes2 (not included here):

joints of the spine (M40-M54)

Index terms for M24.56

Entries in the ICD-10-CM alphabetic index that lead to this code:

Contraction, joint, knee

Related codes in M24.5

M24.50 – Contracture, unspecified jointBillable
M24.51 – Contracture, shoulderHeader
M24.52 – Contracture, elbowHeader
M24.53 – Contracture, wristHeader
M24.54 – Contracture, handHeader
M24.55 – Contracture, hipHeader
M24.57 – Contracture, ankle and footHeader
M24.59 – Contracture, other specified jointBillable

Frequently asked questions

What is ICD-10 code M24.56?

M24.56 is the ICD-10-CM code for contracture, knee, in the block M20-M25 (Other joint disorders).

Is M24.56 a billable code?

No. M24.56 is a header code with more specific child codes; report one of the billable codes listed above.

What category does M24.56 belong to?

It belongs to category M24 – Other specific joint derangements.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.