M40.03 is the authoritative medical code for Postural kyphosis, cervicothoracic region. This classification is used in medical billing and clinical recording to specify the clinical criteria for postural kyphosis, cervicothoracic region (ICD-10-CM M40.03), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Postural kyphosis, cervicothoracic region is a billable ICD-10-CM diagnosis code M40.03. Excludes1 (not coded here): osteochondrosis of spine M42.-; congenital kyphosis and lordosis Q76.4; kyphoscoliosis M41.-; postprocedural kyphosis and lordosis M96.-. Code first: underlying disease.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for M40.03 in the official ICD-10-CM tabular list.
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- osteochondrosis of spine M42.-
- congenital kyphosis and lordosis Q76.4
- kyphoscoliosis M41.-
- postprocedural kyphosis and lordosis M96.-
Code First
Underlying conditions that must be sequenced before this code.
Frequently Asked Questions (FAQ) & Clinical Guidance
What can't be coded together with M40.03?
Per Excludes1 instructions, M40.03 must not be reported with: osteochondrosis of spine (M42.-); congenital kyphosis and lordosis (Q76.4); kyphoscoliosis (M41.-); postprocedural kyphosis and lordosis (M96.-).
Does M40.03 need to be sequenced after another code?
Yes. Code first: underlying disease.
Codes in This Family (39)
Official ICD-10-CM classifications in the same code family as M40.03, with their registry titles.
- M40 — Kyphosis and lordosis
- M40.0 — Postural kyphosis
- M40.00 — Postural kyphosis, site unspecified
- M40.04 — Postural kyphosis, thoracic region
- M40.05 — Postural kyphosis, thoracolumbar region
- M40.1 — Other secondary kyphosis
- M40.10 — Other secondary kyphosis, site unspecified
- M40.12 — Other secondary kyphosis, cervical region
- M40.13 — Other secondary kyphosis, cervicothoracic region
- M40.14 — Other secondary kyphosis, thoracic region
- M40.15 — Other secondary kyphosis, thoracolumbar region
- M40.2 — Other and unspecified kyphosis
- M40.20 — Unspecified kyphosis
- M40.202 — Unspecified kyphosis, cervical region
- M40.203 — Unspecified kyphosis, cervicothoracic region
- M40.204 — Unspecified kyphosis, thoracic region
- M40.205 — Unspecified kyphosis, thoracolumbar region
- M40.209 — Unspecified kyphosis, site unspecified
- M40.29 — Other kyphosis
- M40.292 — Other kyphosis, cervical region
- M40.293 — Other kyphosis, cervicothoracic region
- M40.294 — Other kyphosis, thoracic region
- M40.295 — Other kyphosis, thoracolumbar region
- M40.299 — Other kyphosis, site unspecified
- M40.3 — Flatback syndrome
- M40.30 — Flatback syndrome, site unspecified
- M40.35 — Flatback syndrome, thoracolumbar region
- M40.36 — Flatback syndrome, lumbar region
- M40.37 — Flatback syndrome, lumbosacral region
- M40.4 — Postural lordosis
- M40.40 — Postural lordosis, site unspecified
- M40.45 — Postural lordosis, thoracolumbar region
- M40.46 — Postural lordosis, lumbar region
- M40.47 — Postural lordosis, lumbosacral region
- M40.5 — Lordosis, unspecified
- M40.50 — Lordosis, unspecified, site unspecified
- M40.55 — Lordosis, unspecified, thoracolumbar region
- M40.56 — Lordosis, unspecified, lumbar region
- M40.57 — Lordosis, unspecified, lumbosacral region
Indexed Clinical Terms (1)
Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.
- Kyphosis, kyphotic (acquired), postural (adolescent), cervicothoracic region
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures: