ICD-10-CM Alphabetic Index · FY 2026 76 Entries
Collapse in the ICD-10-CM Index ICD-10-CM
The main term Collapse carries 76 index entries pointing to 39 ICD-10-CM codes. The default entry is R55, the code the bare main term maps to; every indented line below refines the term by site, cause, or type. Verify any candidate code in the Tabular List before using it.
✓ Built from the official CMS FY 2026 index fileEffective Oct 1, 2025 – Sep 30, 2026
76
Index Entries
39
Codes Referenced
R55
Default Code
C
Letter
76 of 76 shown
ICD-10-CM
Index Entries Under Collapse 76 entries · 39 codes
Collapse R55
adrenal E27.2
cardiorespiratory R57.0
cardiovascular R57.0
newborn P29.89
circulatory (peripheral) R57.9
during or after labor and delivery O75.1
following ectopic or molar pregnancy O08.3
newborn P29.89
during or
after labor and delivery O75.1
resulting from a procedure, not elsewhere classified T81.10 Non-billable
external ear canal see Stenosis, external ear canal
general R55
heart see Disease, heart
heat T67.1 Non-billable
hysterical F44.89
labyrinth, membranous (congenital) Q16.5
lung (massive) J98.19 see also Atelectasis
pressure due to anesthesia (general) (local) or other sedation T88.2 Non-billable
during labor and delivery O74.1
in pregnancy O29.02- Non-billable
postpartum, puerperal O89.09
myocardial see Disease, heart
nasal valve J34.829
external J34.8210
dynamic J34.8212
static J34.8211
internal J34.8200
dynamic J34.8202
static J34.8201
nervous F48.8
neurocirculatory F45.8
nose M95.0
lower sidewall or nostril, on inspiration J34.8212
upper, middle sidewall, on inspiration J34.8202
postoperative T81.10 Non-billable
pulmonary J98.19 see also Atelectasis
newborn see Atelectasis
trachea J39.8
tracheobronchial J98.09
valvular see Endocarditis
vascular (peripheral) R57.9
during or after labor and delivery O75.1
following ectopic or molar pregnancy O08.3
newborn P29.89
vertebra M48.50- Non-billable
cervical region M48.52- Non-billable
cervicothoracic region M48.53- Non-billable
in (due to)
neoplasm (metastasis) M84.58- Non-billable
cervical region M80.88 Non-billable
cervicothoracic region M80.88 Non-billable
lumbar region M80.88 Non-billable
lumbosacral region M80.88 Non-billable
multiple sites M80.88 Non-billable
occipito-atlanto-axial region M80.88 Non-billable
sacrococcygeal region M80.88 Non-billable
thoracic region M80.88 Non-billable
thoracolumbar region M80.88 Non-billable
specified disease NEC M48.50- Non-billable
cervical region M48.52- Non-billable
cervicothoracic region M48.53- Non-billable
lumbar region M48.56- Non-billable
lumbosacral region M48.57- Non-billable
occipito-atlanto-axial region M48.51- Non-billable
sacrococcygeal region M48.58- Non-billable
thoracic region M48.54- Non-billable
thoracolumbar region M48.55- Non-billable
lumbar region M48.56- Non-billable
lumbosacral region M48.57- Non-billable
occipito-atlanto-axial region M48.51- Non-billable
sacrococcygeal region M48.58- Non-billable
thoracic region M48.54- Non-billable
thoracolumbar region M48.55- Non-billable
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Related Index Terms
Source: Centers for Medicare & Medicaid Services, FY 2026 ICD-10-CM Index to Diseases and Injuries release files, effective October 1, 2025 through September 30, 2026.
