M40.5
Non-billableLordosis, unspecified
Lordosis, unspecified
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Excludes 2
Conditions not included here, but the patient may have both
- •arthropathic psoriasisL40.5
- •certain conditions originating in the perinatal periodP04-P96
- •certain infectious and parasitic diseasesA00-B99
- •compartment syndrome (traumatic)A-)T79
- •complications of pregnancy, childbirth and the puerperiumO9A)O00
- •congenital malformations, deformations, and chromosomal abnormalitiesQ00-Q99
- •endocrine, nutritional and metabolic diseasesE00-E88
- •injury, poisoning and certain other consequences of external causesS00-T88
- •neoplasmsC00-D49
- •symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classifiedR00-R94
Code First
The underlying condition must be sequenced before this code
- underlying disease
Child Codes (4)
Related Codes(5)
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(18)
UMLS
- Hollow backC0024003
- HyperlordosisC0024003
- Hyperlordosis deformity of lumbar spineC0024003
- Hyperlordosis deformity of lumbar spine (disorder)C0024003
- HyperlordoticC0024003
- LordosisC0024003
- Lordosis accentuatedC0024003
- Lordosis accentuated (finding)C0024003
- Lordosis deformity of spineC0024003
- Lordosis deformity of spine (disorder)C0024003
- Lordosis, unspecifiedC0024003
- Prominent swaybackC0024003
- Saddle backC0024003
- SwaybackC0024003
- accentuate lordosisC0024003
- hyperlordoticC0024003
- lordosisC0024003
- swaybackC0024003
Frequently Asked Questions
What is the ICD-10 code for lordosis, unspecified?
The ICD-10-CM code for lordosis, unspecified is M40.5. The full clinical description is "Lordosis, unspecified". M40.5 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code M40.5 mean?
ICD-10-CM code M40.5 represents “Lordosis, unspecified”. It is classified under Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue and is a non-billable header code. Use a more specific child code for billing purposes.
Is M40.5 a billable code?
No, M40.5 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 4 child codes under M40.5.
What chapter is M40.5 in?
M40.5 is in Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue (codes M00-M99).
What codes cannot be used with M40.5?
M40.5 has Excludes1 notes indicating codes that cannot be used together with it, including: congenital kyphosis and lordosis (Q76.4); kyphoscoliosis (M41.-); postprocedural kyphosis and lordosis (M96.-).
What are the subcategories under M40.5?
M40.5 has 4 child codes, including: M40.50 (Lordosis, unspecified, site unspecified), M40.55 (Lordosis, unspecified, thoracolumbar region), M40.56 (Lordosis, unspecified, lumbar region), M40.57 (Lordosis, unspecified, lumbosacral region).
What are the UMLS CUIs for M40.5?
M40.5 is linked to 1 UMLS Concept Unique Identifier: C0024003. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does M40.5 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like lordosis, unspecified affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of M40.5?
M40.5 maps to the ICD-11 code: FA70.2 (Lordosis).
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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.