AutoICD API

M22.4

Non-billable

Chondromalacia patellae

Chondromalacia patellae

This is a header/category code. For billing purposes, use a more specific child code from the list below.

Status

Non-billable / Header

Block

M20-M25

Parent Code

M22

Child Codes

3

Coding Notes

Excludes 2

Conditions not included here, but the patient may have both

  • arthropathic psoriasis (L40.5-)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • compartment syndrome (traumatic) (T79.A-)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
  • joints of the spine (M40-M54)
  • traumatic dislocation of patella (S83.0-)

Child Codes (3)

M22.40

Chondromalacia patellae, unspecified knee

BillableM22.41

Chondromalacia patellae, right knee

BillableM22.42

Chondromalacia patellae, left knee

Billable

Also Known As / Clinical Terms

UMLS

Frequently Asked Questions

What is ICD-10 code M22.4?

ICD-10-CM code M22.4 represents "Chondromalacia patellae". It is a non-billable header code — use a more specific child code for billing purposes.

Is M22.4 a billable code?

No, M22.4 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 3 child codes under M22.4.

What chapter is M22.4 in?

M22.4 is in Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue (codes M00-M99).

What are the subcategories under M22.4?

M22.4 has 3 child codes, including: M22.40 (Chondromalacia patellae, unspecified knee), M22.41 (Chondromalacia patellae, right knee), M22.42 (Chondromalacia patellae, left knee).

What are the UMLS CUIs for M22.4?

M22.4 is linked to 1 UMLS Concept Unique Identifier: C0008475. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.

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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.